*/
#include "qemu/osdep.h"
-#include "qemu-common.h"
#include "qemu/error-report.h"
#include "sysemu/runstate.h"
#include "sysemu/hvf_int.h"
#include "sysemu/hw_accel.h"
#include "hvf_arm.h"
+#include "cpregs.h"
#include <mach/mach_time.h>
#include "arm-powerctl.h"
#include "target/arm/cpu.h"
#include "target/arm/internals.h"
+#include "target/arm/multiprocessing.h"
+#include "target/arm/gtimer.h"
#include "trace/trace-target_arm_hvf.h"
#include "migration/vmstate.h"
+#include "exec/gdbstub.h"
+
+#define MDSCR_EL1_SS_SHIFT 0
+#define MDSCR_EL1_MDE_SHIFT 15
+
+static const uint16_t dbgbcr_regs[] = {
+ HV_SYS_REG_DBGBCR0_EL1,
+ HV_SYS_REG_DBGBCR1_EL1,
+ HV_SYS_REG_DBGBCR2_EL1,
+ HV_SYS_REG_DBGBCR3_EL1,
+ HV_SYS_REG_DBGBCR4_EL1,
+ HV_SYS_REG_DBGBCR5_EL1,
+ HV_SYS_REG_DBGBCR6_EL1,
+ HV_SYS_REG_DBGBCR7_EL1,
+ HV_SYS_REG_DBGBCR8_EL1,
+ HV_SYS_REG_DBGBCR9_EL1,
+ HV_SYS_REG_DBGBCR10_EL1,
+ HV_SYS_REG_DBGBCR11_EL1,
+ HV_SYS_REG_DBGBCR12_EL1,
+ HV_SYS_REG_DBGBCR13_EL1,
+ HV_SYS_REG_DBGBCR14_EL1,
+ HV_SYS_REG_DBGBCR15_EL1,
+};
+
+static const uint16_t dbgbvr_regs[] = {
+ HV_SYS_REG_DBGBVR0_EL1,
+ HV_SYS_REG_DBGBVR1_EL1,
+ HV_SYS_REG_DBGBVR2_EL1,
+ HV_SYS_REG_DBGBVR3_EL1,
+ HV_SYS_REG_DBGBVR4_EL1,
+ HV_SYS_REG_DBGBVR5_EL1,
+ HV_SYS_REG_DBGBVR6_EL1,
+ HV_SYS_REG_DBGBVR7_EL1,
+ HV_SYS_REG_DBGBVR8_EL1,
+ HV_SYS_REG_DBGBVR9_EL1,
+ HV_SYS_REG_DBGBVR10_EL1,
+ HV_SYS_REG_DBGBVR11_EL1,
+ HV_SYS_REG_DBGBVR12_EL1,
+ HV_SYS_REG_DBGBVR13_EL1,
+ HV_SYS_REG_DBGBVR14_EL1,
+ HV_SYS_REG_DBGBVR15_EL1,
+};
+
+static const uint16_t dbgwcr_regs[] = {
+ HV_SYS_REG_DBGWCR0_EL1,
+ HV_SYS_REG_DBGWCR1_EL1,
+ HV_SYS_REG_DBGWCR2_EL1,
+ HV_SYS_REG_DBGWCR3_EL1,
+ HV_SYS_REG_DBGWCR4_EL1,
+ HV_SYS_REG_DBGWCR5_EL1,
+ HV_SYS_REG_DBGWCR6_EL1,
+ HV_SYS_REG_DBGWCR7_EL1,
+ HV_SYS_REG_DBGWCR8_EL1,
+ HV_SYS_REG_DBGWCR9_EL1,
+ HV_SYS_REG_DBGWCR10_EL1,
+ HV_SYS_REG_DBGWCR11_EL1,
+ HV_SYS_REG_DBGWCR12_EL1,
+ HV_SYS_REG_DBGWCR13_EL1,
+ HV_SYS_REG_DBGWCR14_EL1,
+ HV_SYS_REG_DBGWCR15_EL1,
+};
+
+static const uint16_t dbgwvr_regs[] = {
+ HV_SYS_REG_DBGWVR0_EL1,
+ HV_SYS_REG_DBGWVR1_EL1,
+ HV_SYS_REG_DBGWVR2_EL1,
+ HV_SYS_REG_DBGWVR3_EL1,
+ HV_SYS_REG_DBGWVR4_EL1,
+ HV_SYS_REG_DBGWVR5_EL1,
+ HV_SYS_REG_DBGWVR6_EL1,
+ HV_SYS_REG_DBGWVR7_EL1,
+ HV_SYS_REG_DBGWVR8_EL1,
+ HV_SYS_REG_DBGWVR9_EL1,
+ HV_SYS_REG_DBGWVR10_EL1,
+ HV_SYS_REG_DBGWVR11_EL1,
+ HV_SYS_REG_DBGWVR12_EL1,
+ HV_SYS_REG_DBGWVR13_EL1,
+ HV_SYS_REG_DBGWVR14_EL1,
+ HV_SYS_REG_DBGWVR15_EL1,
+};
+
+static inline int hvf_arm_num_brps(hv_vcpu_config_t config)
+{
+ uint64_t val;
+ hv_return_t ret;
+ ret = hv_vcpu_config_get_feature_reg(config, HV_FEATURE_REG_ID_AA64DFR0_EL1,
+ &val);
+ assert_hvf_ok(ret);
+ return FIELD_EX64(val, ID_AA64DFR0, BRPS) + 1;
+}
+
+static inline int hvf_arm_num_wrps(hv_vcpu_config_t config)
+{
+ uint64_t val;
+ hv_return_t ret;
+ ret = hv_vcpu_config_get_feature_reg(config, HV_FEATURE_REG_ID_AA64DFR0_EL1,
+ &val);
+ assert_hvf_ok(ret);
+ return FIELD_EX64(val, ID_AA64DFR0, WRPS) + 1;
+}
+
+void hvf_arm_init_debug(void)
+{
+ hv_vcpu_config_t config;
+ config = hv_vcpu_config_create();
+
+ max_hw_bps = hvf_arm_num_brps(config);
+ hw_breakpoints =
+ g_array_sized_new(true, true, sizeof(HWBreakpoint), max_hw_bps);
+
+ max_hw_wps = hvf_arm_num_wrps(config);
+ hw_watchpoints =
+ g_array_sized_new(true, true, sizeof(HWWatchpoint), max_hw_wps);
+}
+
#define HVF_SYSREG(crn, crm, op0, op1, op2) \
ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP, crn, crm, op0, op1, op2)
#define PL1_WRITE_MASK 0x4
+#define SYSREG_OP0_SHIFT 20
+#define SYSREG_OP0_MASK 0x3
+#define SYSREG_OP0(sysreg) ((sysreg >> SYSREG_OP0_SHIFT) & SYSREG_OP0_MASK)
+#define SYSREG_OP1_SHIFT 14
+#define SYSREG_OP1_MASK 0x7
+#define SYSREG_OP1(sysreg) ((sysreg >> SYSREG_OP1_SHIFT) & SYSREG_OP1_MASK)
+#define SYSREG_CRN_SHIFT 10
+#define SYSREG_CRN_MASK 0xf
+#define SYSREG_CRN(sysreg) ((sysreg >> SYSREG_CRN_SHIFT) & SYSREG_CRN_MASK)
+#define SYSREG_CRM_SHIFT 1
+#define SYSREG_CRM_MASK 0xf
+#define SYSREG_CRM(sysreg) ((sysreg >> SYSREG_CRM_SHIFT) & SYSREG_CRM_MASK)
+#define SYSREG_OP2_SHIFT 17
+#define SYSREG_OP2_MASK 0x7
+#define SYSREG_OP2(sysreg) ((sysreg >> SYSREG_OP2_SHIFT) & SYSREG_OP2_MASK)
+
#define SYSREG(op0, op1, crn, crm, op2) \
- ((op0 << 20) | (op2 << 17) | (op1 << 14) | (crn << 10) | (crm << 1))
-#define SYSREG_MASK SYSREG(0x3, 0x7, 0xf, 0xf, 0x7)
+ ((op0 << SYSREG_OP0_SHIFT) | \
+ (op1 << SYSREG_OP1_SHIFT) | \
+ (crn << SYSREG_CRN_SHIFT) | \
+ (crm << SYSREG_CRM_SHIFT) | \
+ (op2 << SYSREG_OP2_SHIFT))
+#define SYSREG_MASK \
+ SYSREG(SYSREG_OP0_MASK, \
+ SYSREG_OP1_MASK, \
+ SYSREG_CRN_MASK, \
+ SYSREG_CRM_MASK, \
+ SYSREG_OP2_MASK)
#define SYSREG_OSLAR_EL1 SYSREG(2, 0, 1, 0, 4)
#define SYSREG_OSLSR_EL1 SYSREG(2, 0, 1, 1, 4)
#define SYSREG_OSDLR_EL1 SYSREG(2, 0, 1, 3, 4)
#define SYSREG_CNTPCT_EL0 SYSREG(3, 3, 14, 0, 1)
+#define SYSREG_PMCR_EL0 SYSREG(3, 3, 9, 12, 0)
+#define SYSREG_PMUSERENR_EL0 SYSREG(3, 3, 9, 14, 0)
+#define SYSREG_PMCNTENSET_EL0 SYSREG(3, 3, 9, 12, 1)
+#define SYSREG_PMCNTENCLR_EL0 SYSREG(3, 3, 9, 12, 2)
+#define SYSREG_PMINTENCLR_EL1 SYSREG(3, 0, 9, 14, 2)
+#define SYSREG_PMOVSCLR_EL0 SYSREG(3, 3, 9, 12, 3)
+#define SYSREG_PMSWINC_EL0 SYSREG(3, 3, 9, 12, 4)
+#define SYSREG_PMSELR_EL0 SYSREG(3, 3, 9, 12, 5)
+#define SYSREG_PMCEID0_EL0 SYSREG(3, 3, 9, 12, 6)
+#define SYSREG_PMCEID1_EL0 SYSREG(3, 3, 9, 12, 7)
+#define SYSREG_PMCCNTR_EL0 SYSREG(3, 3, 9, 13, 0)
+#define SYSREG_PMCCFILTR_EL0 SYSREG(3, 3, 14, 15, 7)
+
+#define SYSREG_ICC_AP0R0_EL1 SYSREG(3, 0, 12, 8, 4)
+#define SYSREG_ICC_AP0R1_EL1 SYSREG(3, 0, 12, 8, 5)
+#define SYSREG_ICC_AP0R2_EL1 SYSREG(3, 0, 12, 8, 6)
+#define SYSREG_ICC_AP0R3_EL1 SYSREG(3, 0, 12, 8, 7)
+#define SYSREG_ICC_AP1R0_EL1 SYSREG(3, 0, 12, 9, 0)
+#define SYSREG_ICC_AP1R1_EL1 SYSREG(3, 0, 12, 9, 1)
+#define SYSREG_ICC_AP1R2_EL1 SYSREG(3, 0, 12, 9, 2)
+#define SYSREG_ICC_AP1R3_EL1 SYSREG(3, 0, 12, 9, 3)
+#define SYSREG_ICC_ASGI1R_EL1 SYSREG(3, 0, 12, 11, 6)
+#define SYSREG_ICC_BPR0_EL1 SYSREG(3, 0, 12, 8, 3)
+#define SYSREG_ICC_BPR1_EL1 SYSREG(3, 0, 12, 12, 3)
+#define SYSREG_ICC_CTLR_EL1 SYSREG(3, 0, 12, 12, 4)
+#define SYSREG_ICC_DIR_EL1 SYSREG(3, 0, 12, 11, 1)
+#define SYSREG_ICC_EOIR0_EL1 SYSREG(3, 0, 12, 8, 1)
+#define SYSREG_ICC_EOIR1_EL1 SYSREG(3, 0, 12, 12, 1)
+#define SYSREG_ICC_HPPIR0_EL1 SYSREG(3, 0, 12, 8, 2)
+#define SYSREG_ICC_HPPIR1_EL1 SYSREG(3, 0, 12, 12, 2)
+#define SYSREG_ICC_IAR0_EL1 SYSREG(3, 0, 12, 8, 0)
+#define SYSREG_ICC_IAR1_EL1 SYSREG(3, 0, 12, 12, 0)
+#define SYSREG_ICC_IGRPEN0_EL1 SYSREG(3, 0, 12, 12, 6)
+#define SYSREG_ICC_IGRPEN1_EL1 SYSREG(3, 0, 12, 12, 7)
+#define SYSREG_ICC_PMR_EL1 SYSREG(3, 0, 4, 6, 0)
+#define SYSREG_ICC_RPR_EL1 SYSREG(3, 0, 12, 11, 3)
+#define SYSREG_ICC_SGI0R_EL1 SYSREG(3, 0, 12, 11, 7)
+#define SYSREG_ICC_SGI1R_EL1 SYSREG(3, 0, 12, 11, 5)
+#define SYSREG_ICC_SRE_EL1 SYSREG(3, 0, 12, 12, 5)
+
+#define SYSREG_MDSCR_EL1 SYSREG(2, 0, 0, 2, 2)
+#define SYSREG_DBGBVR0_EL1 SYSREG(2, 0, 0, 0, 4)
+#define SYSREG_DBGBCR0_EL1 SYSREG(2, 0, 0, 0, 5)
+#define SYSREG_DBGWVR0_EL1 SYSREG(2, 0, 0, 0, 6)
+#define SYSREG_DBGWCR0_EL1 SYSREG(2, 0, 0, 0, 7)
+#define SYSREG_DBGBVR1_EL1 SYSREG(2, 0, 0, 1, 4)
+#define SYSREG_DBGBCR1_EL1 SYSREG(2, 0, 0, 1, 5)
+#define SYSREG_DBGWVR1_EL1 SYSREG(2, 0, 0, 1, 6)
+#define SYSREG_DBGWCR1_EL1 SYSREG(2, 0, 0, 1, 7)
+#define SYSREG_DBGBVR2_EL1 SYSREG(2, 0, 0, 2, 4)
+#define SYSREG_DBGBCR2_EL1 SYSREG(2, 0, 0, 2, 5)
+#define SYSREG_DBGWVR2_EL1 SYSREG(2, 0, 0, 2, 6)
+#define SYSREG_DBGWCR2_EL1 SYSREG(2, 0, 0, 2, 7)
+#define SYSREG_DBGBVR3_EL1 SYSREG(2, 0, 0, 3, 4)
+#define SYSREG_DBGBCR3_EL1 SYSREG(2, 0, 0, 3, 5)
+#define SYSREG_DBGWVR3_EL1 SYSREG(2, 0, 0, 3, 6)
+#define SYSREG_DBGWCR3_EL1 SYSREG(2, 0, 0, 3, 7)
+#define SYSREG_DBGBVR4_EL1 SYSREG(2, 0, 0, 4, 4)
+#define SYSREG_DBGBCR4_EL1 SYSREG(2, 0, 0, 4, 5)
+#define SYSREG_DBGWVR4_EL1 SYSREG(2, 0, 0, 4, 6)
+#define SYSREG_DBGWCR4_EL1 SYSREG(2, 0, 0, 4, 7)
+#define SYSREG_DBGBVR5_EL1 SYSREG(2, 0, 0, 5, 4)
+#define SYSREG_DBGBCR5_EL1 SYSREG(2, 0, 0, 5, 5)
+#define SYSREG_DBGWVR5_EL1 SYSREG(2, 0, 0, 5, 6)
+#define SYSREG_DBGWCR5_EL1 SYSREG(2, 0, 0, 5, 7)
+#define SYSREG_DBGBVR6_EL1 SYSREG(2, 0, 0, 6, 4)
+#define SYSREG_DBGBCR6_EL1 SYSREG(2, 0, 0, 6, 5)
+#define SYSREG_DBGWVR6_EL1 SYSREG(2, 0, 0, 6, 6)
+#define SYSREG_DBGWCR6_EL1 SYSREG(2, 0, 0, 6, 7)
+#define SYSREG_DBGBVR7_EL1 SYSREG(2, 0, 0, 7, 4)
+#define SYSREG_DBGBCR7_EL1 SYSREG(2, 0, 0, 7, 5)
+#define SYSREG_DBGWVR7_EL1 SYSREG(2, 0, 0, 7, 6)
+#define SYSREG_DBGWCR7_EL1 SYSREG(2, 0, 0, 7, 7)
+#define SYSREG_DBGBVR8_EL1 SYSREG(2, 0, 0, 8, 4)
+#define SYSREG_DBGBCR8_EL1 SYSREG(2, 0, 0, 8, 5)
+#define SYSREG_DBGWVR8_EL1 SYSREG(2, 0, 0, 8, 6)
+#define SYSREG_DBGWCR8_EL1 SYSREG(2, 0, 0, 8, 7)
+#define SYSREG_DBGBVR9_EL1 SYSREG(2, 0, 0, 9, 4)
+#define SYSREG_DBGBCR9_EL1 SYSREG(2, 0, 0, 9, 5)
+#define SYSREG_DBGWVR9_EL1 SYSREG(2, 0, 0, 9, 6)
+#define SYSREG_DBGWCR9_EL1 SYSREG(2, 0, 0, 9, 7)
+#define SYSREG_DBGBVR10_EL1 SYSREG(2, 0, 0, 10, 4)
+#define SYSREG_DBGBCR10_EL1 SYSREG(2, 0, 0, 10, 5)
+#define SYSREG_DBGWVR10_EL1 SYSREG(2, 0, 0, 10, 6)
+#define SYSREG_DBGWCR10_EL1 SYSREG(2, 0, 0, 10, 7)
+#define SYSREG_DBGBVR11_EL1 SYSREG(2, 0, 0, 11, 4)
+#define SYSREG_DBGBCR11_EL1 SYSREG(2, 0, 0, 11, 5)
+#define SYSREG_DBGWVR11_EL1 SYSREG(2, 0, 0, 11, 6)
+#define SYSREG_DBGWCR11_EL1 SYSREG(2, 0, 0, 11, 7)
+#define SYSREG_DBGBVR12_EL1 SYSREG(2, 0, 0, 12, 4)
+#define SYSREG_DBGBCR12_EL1 SYSREG(2, 0, 0, 12, 5)
+#define SYSREG_DBGWVR12_EL1 SYSREG(2, 0, 0, 12, 6)
+#define SYSREG_DBGWCR12_EL1 SYSREG(2, 0, 0, 12, 7)
+#define SYSREG_DBGBVR13_EL1 SYSREG(2, 0, 0, 13, 4)
+#define SYSREG_DBGBCR13_EL1 SYSREG(2, 0, 0, 13, 5)
+#define SYSREG_DBGWVR13_EL1 SYSREG(2, 0, 0, 13, 6)
+#define SYSREG_DBGWCR13_EL1 SYSREG(2, 0, 0, 13, 7)
+#define SYSREG_DBGBVR14_EL1 SYSREG(2, 0, 0, 14, 4)
+#define SYSREG_DBGBCR14_EL1 SYSREG(2, 0, 0, 14, 5)
+#define SYSREG_DBGWVR14_EL1 SYSREG(2, 0, 0, 14, 6)
+#define SYSREG_DBGWCR14_EL1 SYSREG(2, 0, 0, 14, 7)
+#define SYSREG_DBGBVR15_EL1 SYSREG(2, 0, 0, 15, 4)
+#define SYSREG_DBGBCR15_EL1 SYSREG(2, 0, 0, 15, 5)
+#define SYSREG_DBGWVR15_EL1 SYSREG(2, 0, 0, 15, 6)
+#define SYSREG_DBGWCR15_EL1 SYSREG(2, 0, 0, 15, 7)
#define WFX_IS_WFE (1 << 0)
int i;
for (i = 0; i < ARRAY_SIZE(hvf_reg_match); i++) {
- ret = hv_vcpu_get_reg(cpu->hvf->fd, hvf_reg_match[i].reg, &val);
+ ret = hv_vcpu_get_reg(cpu->accel->fd, hvf_reg_match[i].reg, &val);
*(uint64_t *)((void *)env + hvf_reg_match[i].offset) = val;
assert_hvf_ok(ret);
}
for (i = 0; i < ARRAY_SIZE(hvf_fpreg_match); i++) {
- ret = hv_vcpu_get_simd_fp_reg(cpu->hvf->fd, hvf_fpreg_match[i].reg,
+ ret = hv_vcpu_get_simd_fp_reg(cpu->accel->fd, hvf_fpreg_match[i].reg,
&fpval);
memcpy((void *)env + hvf_fpreg_match[i].offset, &fpval, sizeof(fpval));
assert_hvf_ok(ret);
}
val = 0;
- ret = hv_vcpu_get_reg(cpu->hvf->fd, HV_REG_FPCR, &val);
+ ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_FPCR, &val);
assert_hvf_ok(ret);
vfp_set_fpcr(env, val);
val = 0;
- ret = hv_vcpu_get_reg(cpu->hvf->fd, HV_REG_FPSR, &val);
+ ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_FPSR, &val);
assert_hvf_ok(ret);
vfp_set_fpsr(env, val);
- ret = hv_vcpu_get_reg(cpu->hvf->fd, HV_REG_CPSR, &val);
+ ret = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_CPSR, &val);
assert_hvf_ok(ret);
pstate_write(env, val);
continue;
}
- ret = hv_vcpu_get_sys_reg(cpu->hvf->fd, hvf_sreg_match[i].reg, &val);
+ if (cpu->accel->guest_debug_enabled) {
+ /* Handle debug registers */
+ switch (hvf_sreg_match[i].reg) {
+ case HV_SYS_REG_DBGBVR0_EL1:
+ case HV_SYS_REG_DBGBCR0_EL1:
+ case HV_SYS_REG_DBGWVR0_EL1:
+ case HV_SYS_REG_DBGWCR0_EL1:
+ case HV_SYS_REG_DBGBVR1_EL1:
+ case HV_SYS_REG_DBGBCR1_EL1:
+ case HV_SYS_REG_DBGWVR1_EL1:
+ case HV_SYS_REG_DBGWCR1_EL1:
+ case HV_SYS_REG_DBGBVR2_EL1:
+ case HV_SYS_REG_DBGBCR2_EL1:
+ case HV_SYS_REG_DBGWVR2_EL1:
+ case HV_SYS_REG_DBGWCR2_EL1:
+ case HV_SYS_REG_DBGBVR3_EL1:
+ case HV_SYS_REG_DBGBCR3_EL1:
+ case HV_SYS_REG_DBGWVR3_EL1:
+ case HV_SYS_REG_DBGWCR3_EL1:
+ case HV_SYS_REG_DBGBVR4_EL1:
+ case HV_SYS_REG_DBGBCR4_EL1:
+ case HV_SYS_REG_DBGWVR4_EL1:
+ case HV_SYS_REG_DBGWCR4_EL1:
+ case HV_SYS_REG_DBGBVR5_EL1:
+ case HV_SYS_REG_DBGBCR5_EL1:
+ case HV_SYS_REG_DBGWVR5_EL1:
+ case HV_SYS_REG_DBGWCR5_EL1:
+ case HV_SYS_REG_DBGBVR6_EL1:
+ case HV_SYS_REG_DBGBCR6_EL1:
+ case HV_SYS_REG_DBGWVR6_EL1:
+ case HV_SYS_REG_DBGWCR6_EL1:
+ case HV_SYS_REG_DBGBVR7_EL1:
+ case HV_SYS_REG_DBGBCR7_EL1:
+ case HV_SYS_REG_DBGWVR7_EL1:
+ case HV_SYS_REG_DBGWCR7_EL1:
+ case HV_SYS_REG_DBGBVR8_EL1:
+ case HV_SYS_REG_DBGBCR8_EL1:
+ case HV_SYS_REG_DBGWVR8_EL1:
+ case HV_SYS_REG_DBGWCR8_EL1:
+ case HV_SYS_REG_DBGBVR9_EL1:
+ case HV_SYS_REG_DBGBCR9_EL1:
+ case HV_SYS_REG_DBGWVR9_EL1:
+ case HV_SYS_REG_DBGWCR9_EL1:
+ case HV_SYS_REG_DBGBVR10_EL1:
+ case HV_SYS_REG_DBGBCR10_EL1:
+ case HV_SYS_REG_DBGWVR10_EL1:
+ case HV_SYS_REG_DBGWCR10_EL1:
+ case HV_SYS_REG_DBGBVR11_EL1:
+ case HV_SYS_REG_DBGBCR11_EL1:
+ case HV_SYS_REG_DBGWVR11_EL1:
+ case HV_SYS_REG_DBGWCR11_EL1:
+ case HV_SYS_REG_DBGBVR12_EL1:
+ case HV_SYS_REG_DBGBCR12_EL1:
+ case HV_SYS_REG_DBGWVR12_EL1:
+ case HV_SYS_REG_DBGWCR12_EL1:
+ case HV_SYS_REG_DBGBVR13_EL1:
+ case HV_SYS_REG_DBGBCR13_EL1:
+ case HV_SYS_REG_DBGWVR13_EL1:
+ case HV_SYS_REG_DBGWCR13_EL1:
+ case HV_SYS_REG_DBGBVR14_EL1:
+ case HV_SYS_REG_DBGBCR14_EL1:
+ case HV_SYS_REG_DBGWVR14_EL1:
+ case HV_SYS_REG_DBGWCR14_EL1:
+ case HV_SYS_REG_DBGBVR15_EL1:
+ case HV_SYS_REG_DBGBCR15_EL1:
+ case HV_SYS_REG_DBGWVR15_EL1:
+ case HV_SYS_REG_DBGWCR15_EL1: {
+ /*
+ * If the guest is being debugged, the vCPU's debug registers
+ * are holding the gdbstub's view of the registers (set in
+ * hvf_arch_update_guest_debug()).
+ * Since the environment is used to store only the guest's view
+ * of the registers, don't update it with the values from the
+ * vCPU but simply keep the values from the previous
+ * environment.
+ */
+ const ARMCPRegInfo *ri;
+ ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_sreg_match[i].key);
+ val = read_raw_cp_reg(env, ri);
+
+ arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx] = val;
+ continue;
+ }
+ }
+ }
+
+ ret = hv_vcpu_get_sys_reg(cpu->accel->fd, hvf_sreg_match[i].reg, &val);
assert_hvf_ok(ret);
arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx] = val;
for (i = 0; i < ARRAY_SIZE(hvf_reg_match); i++) {
val = *(uint64_t *)((void *)env + hvf_reg_match[i].offset);
- ret = hv_vcpu_set_reg(cpu->hvf->fd, hvf_reg_match[i].reg, val);
+ ret = hv_vcpu_set_reg(cpu->accel->fd, hvf_reg_match[i].reg, val);
assert_hvf_ok(ret);
}
for (i = 0; i < ARRAY_SIZE(hvf_fpreg_match); i++) {
memcpy(&fpval, (void *)env + hvf_fpreg_match[i].offset, sizeof(fpval));
- ret = hv_vcpu_set_simd_fp_reg(cpu->hvf->fd, hvf_fpreg_match[i].reg,
+ ret = hv_vcpu_set_simd_fp_reg(cpu->accel->fd, hvf_fpreg_match[i].reg,
fpval);
assert_hvf_ok(ret);
}
- ret = hv_vcpu_set_reg(cpu->hvf->fd, HV_REG_FPCR, vfp_get_fpcr(env));
+ ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_FPCR, vfp_get_fpcr(env));
assert_hvf_ok(ret);
- ret = hv_vcpu_set_reg(cpu->hvf->fd, HV_REG_FPSR, vfp_get_fpsr(env));
+ ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_FPSR, vfp_get_fpsr(env));
assert_hvf_ok(ret);
- ret = hv_vcpu_set_reg(cpu->hvf->fd, HV_REG_CPSR, pstate_read(env));
+ ret = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_CPSR, pstate_read(env));
assert_hvf_ok(ret);
aarch64_save_sp(env, arm_current_el(env));
continue;
}
+ if (cpu->accel->guest_debug_enabled) {
+ /* Handle debug registers */
+ switch (hvf_sreg_match[i].reg) {
+ case HV_SYS_REG_DBGBVR0_EL1:
+ case HV_SYS_REG_DBGBCR0_EL1:
+ case HV_SYS_REG_DBGWVR0_EL1:
+ case HV_SYS_REG_DBGWCR0_EL1:
+ case HV_SYS_REG_DBGBVR1_EL1:
+ case HV_SYS_REG_DBGBCR1_EL1:
+ case HV_SYS_REG_DBGWVR1_EL1:
+ case HV_SYS_REG_DBGWCR1_EL1:
+ case HV_SYS_REG_DBGBVR2_EL1:
+ case HV_SYS_REG_DBGBCR2_EL1:
+ case HV_SYS_REG_DBGWVR2_EL1:
+ case HV_SYS_REG_DBGWCR2_EL1:
+ case HV_SYS_REG_DBGBVR3_EL1:
+ case HV_SYS_REG_DBGBCR3_EL1:
+ case HV_SYS_REG_DBGWVR3_EL1:
+ case HV_SYS_REG_DBGWCR3_EL1:
+ case HV_SYS_REG_DBGBVR4_EL1:
+ case HV_SYS_REG_DBGBCR4_EL1:
+ case HV_SYS_REG_DBGWVR4_EL1:
+ case HV_SYS_REG_DBGWCR4_EL1:
+ case HV_SYS_REG_DBGBVR5_EL1:
+ case HV_SYS_REG_DBGBCR5_EL1:
+ case HV_SYS_REG_DBGWVR5_EL1:
+ case HV_SYS_REG_DBGWCR5_EL1:
+ case HV_SYS_REG_DBGBVR6_EL1:
+ case HV_SYS_REG_DBGBCR6_EL1:
+ case HV_SYS_REG_DBGWVR6_EL1:
+ case HV_SYS_REG_DBGWCR6_EL1:
+ case HV_SYS_REG_DBGBVR7_EL1:
+ case HV_SYS_REG_DBGBCR7_EL1:
+ case HV_SYS_REG_DBGWVR7_EL1:
+ case HV_SYS_REG_DBGWCR7_EL1:
+ case HV_SYS_REG_DBGBVR8_EL1:
+ case HV_SYS_REG_DBGBCR8_EL1:
+ case HV_SYS_REG_DBGWVR8_EL1:
+ case HV_SYS_REG_DBGWCR8_EL1:
+ case HV_SYS_REG_DBGBVR9_EL1:
+ case HV_SYS_REG_DBGBCR9_EL1:
+ case HV_SYS_REG_DBGWVR9_EL1:
+ case HV_SYS_REG_DBGWCR9_EL1:
+ case HV_SYS_REG_DBGBVR10_EL1:
+ case HV_SYS_REG_DBGBCR10_EL1:
+ case HV_SYS_REG_DBGWVR10_EL1:
+ case HV_SYS_REG_DBGWCR10_EL1:
+ case HV_SYS_REG_DBGBVR11_EL1:
+ case HV_SYS_REG_DBGBCR11_EL1:
+ case HV_SYS_REG_DBGWVR11_EL1:
+ case HV_SYS_REG_DBGWCR11_EL1:
+ case HV_SYS_REG_DBGBVR12_EL1:
+ case HV_SYS_REG_DBGBCR12_EL1:
+ case HV_SYS_REG_DBGWVR12_EL1:
+ case HV_SYS_REG_DBGWCR12_EL1:
+ case HV_SYS_REG_DBGBVR13_EL1:
+ case HV_SYS_REG_DBGBCR13_EL1:
+ case HV_SYS_REG_DBGWVR13_EL1:
+ case HV_SYS_REG_DBGWCR13_EL1:
+ case HV_SYS_REG_DBGBVR14_EL1:
+ case HV_SYS_REG_DBGBCR14_EL1:
+ case HV_SYS_REG_DBGWVR14_EL1:
+ case HV_SYS_REG_DBGWCR14_EL1:
+ case HV_SYS_REG_DBGBVR15_EL1:
+ case HV_SYS_REG_DBGBCR15_EL1:
+ case HV_SYS_REG_DBGWVR15_EL1:
+ case HV_SYS_REG_DBGWCR15_EL1:
+ /*
+ * If the guest is being debugged, the vCPU's debug registers
+ * are already holding the gdbstub's view of the registers (set
+ * in hvf_arch_update_guest_debug()).
+ */
+ continue;
+ }
+ }
+
val = arm_cpu->cpreg_values[hvf_sreg_match[i].cp_idx];
- ret = hv_vcpu_set_sys_reg(cpu->hvf->fd, hvf_sreg_match[i].reg, val);
+ ret = hv_vcpu_set_sys_reg(cpu->accel->fd, hvf_sreg_match[i].reg, val);
assert_hvf_ok(ret);
}
- ret = hv_vcpu_set_vtimer_offset(cpu->hvf->fd, hvf_state->vtimer_offset);
+ ret = hv_vcpu_set_vtimer_offset(cpu->accel->fd, hvf_state->vtimer_offset);
assert_hvf_ok(ret);
return 0;
flush_cpu_state(cpu);
if (rt < 31) {
- r = hv_vcpu_set_reg(cpu->hvf->fd, HV_REG_X0 + rt, val);
+ r = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_X0 + rt, val);
assert_hvf_ok(r);
}
}
flush_cpu_state(cpu);
if (rt < 31) {
- r = hv_vcpu_get_reg(cpu->hvf->fd, HV_REG_X0 + rt, &val);
+ r = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_X0 + rt, &val);
assert_hvf_ok(r);
}
{ HV_SYS_REG_ID_AA64DFR1_EL1, &host_isar.id_aa64dfr1 },
{ HV_SYS_REG_ID_AA64ISAR0_EL1, &host_isar.id_aa64isar0 },
{ HV_SYS_REG_ID_AA64ISAR1_EL1, &host_isar.id_aa64isar1 },
+ /* Add ID_AA64ISAR2_EL1 here when HVF supports it */
{ HV_SYS_REG_ID_AA64MMFR0_EL1, &host_isar.id_aa64mmfr0 },
{ HV_SYS_REG_ID_AA64MMFR1_EL1, &host_isar.id_aa64mmfr1 },
{ HV_SYS_REG_ID_AA64MMFR2_EL1, &host_isar.id_aa64mmfr2 },
hv_return_t ret;
int i;
- env->aarch64 = 1;
+ env->aarch64 = true;
asm volatile("mrs %0, cntfrq_el0" : "=r"(arm_cpu->gt_cntfrq_hz));
/* Allocate enough space for our sysreg sync */
assert(write_cpustate_to_list(arm_cpu, false));
/* Set CP_NO_RAW system registers on init */
- ret = hv_vcpu_set_sys_reg(cpu->hvf->fd, HV_SYS_REG_MIDR_EL1,
+ ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_MIDR_EL1,
arm_cpu->midr);
assert_hvf_ok(ret);
- ret = hv_vcpu_set_sys_reg(cpu->hvf->fd, HV_SYS_REG_MPIDR_EL1,
+ ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_MPIDR_EL1,
arm_cpu->mp_affinity);
assert_hvf_ok(ret);
- ret = hv_vcpu_get_sys_reg(cpu->hvf->fd, HV_SYS_REG_ID_AA64PFR0_EL1, &pfr);
+ ret = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64PFR0_EL1, &pfr);
assert_hvf_ok(ret);
pfr |= env->gicv3state ? (1 << 24) : 0;
- ret = hv_vcpu_set_sys_reg(cpu->hvf->fd, HV_SYS_REG_ID_AA64PFR0_EL1, pfr);
+ ret = hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64PFR0_EL1, pfr);
assert_hvf_ok(ret);
/* We're limited to underlying hardware caps, override internal versions */
- ret = hv_vcpu_get_sys_reg(cpu->hvf->fd, HV_SYS_REG_ID_AA64MMFR0_EL1,
+ ret = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_ID_AA64MMFR0_EL1,
&arm_cpu->isar.id_aa64mmfr0);
assert_hvf_ok(ret);
void hvf_kick_vcpu_thread(CPUState *cpu)
{
cpus_kick_thread(cpu);
- hv_vcpus_exit(&cpu->hvf->fd, 1);
+ hv_vcpus_exit(&cpu->accel->fd, 1);
}
static void hvf_raise_exception(CPUState *cpu, uint32_t excp,
static void hvf_psci_cpu_off(ARMCPU *arm_cpu)
{
- int32_t ret = arm_set_cpu_off(arm_cpu->mp_affinity);
+ int32_t ret = arm_set_cpu_off(arm_cpu_mp_affinity(arm_cpu));
assert(ret == QEMU_ARM_POWERCTL_RET_SUCCESS);
}
int32_t ret = 0;
trace_hvf_psci_call(param[0], param[1], param[2], param[3],
- arm_cpu->mp_affinity);
+ arm_cpu_mp_affinity(arm_cpu));
switch (param[0]) {
case QEMU_PSCI_0_2_FN_PSCI_VERSION:
- ret = QEMU_PSCI_0_2_RET_VERSION_0_2;
+ ret = QEMU_PSCI_VERSION_1_1;
break;
case QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE:
ret = QEMU_PSCI_0_2_RET_TOS_MIGRATION_NOT_REQUIRED; /* No trusted OS */
case QEMU_PSCI_0_2_FN_MIGRATE:
ret = QEMU_PSCI_RET_NOT_SUPPORTED;
break;
+ case QEMU_PSCI_1_0_FN_PSCI_FEATURES:
+ switch (param[1]) {
+ case QEMU_PSCI_0_2_FN_PSCI_VERSION:
+ case QEMU_PSCI_0_2_FN_MIGRATE_INFO_TYPE:
+ case QEMU_PSCI_0_2_FN_AFFINITY_INFO:
+ case QEMU_PSCI_0_2_FN64_AFFINITY_INFO:
+ case QEMU_PSCI_0_2_FN_SYSTEM_RESET:
+ case QEMU_PSCI_0_2_FN_SYSTEM_OFF:
+ case QEMU_PSCI_0_1_FN_CPU_ON:
+ case QEMU_PSCI_0_2_FN_CPU_ON:
+ case QEMU_PSCI_0_2_FN64_CPU_ON:
+ case QEMU_PSCI_0_1_FN_CPU_OFF:
+ case QEMU_PSCI_0_2_FN_CPU_OFF:
+ case QEMU_PSCI_0_1_FN_CPU_SUSPEND:
+ case QEMU_PSCI_0_2_FN_CPU_SUSPEND:
+ case QEMU_PSCI_0_2_FN64_CPU_SUSPEND:
+ case QEMU_PSCI_1_0_FN_PSCI_FEATURES:
+ ret = 0;
+ break;
+ case QEMU_PSCI_0_1_FN_MIGRATE:
+ case QEMU_PSCI_0_2_FN_MIGRATE:
+ default:
+ ret = QEMU_PSCI_RET_NOT_SUPPORTED;
+ }
+ break;
default:
return false;
}
return true;
}
+static bool is_id_sysreg(uint32_t reg)
+{
+ return SYSREG_OP0(reg) == 3 &&
+ SYSREG_OP1(reg) == 0 &&
+ SYSREG_CRN(reg) == 0 &&
+ SYSREG_CRM(reg) >= 1 &&
+ SYSREG_CRM(reg) < 8;
+}
+
+static uint32_t hvf_reg2cp_reg(uint32_t reg)
+{
+ return ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP,
+ (reg >> SYSREG_CRN_SHIFT) & SYSREG_CRN_MASK,
+ (reg >> SYSREG_CRM_SHIFT) & SYSREG_CRM_MASK,
+ (reg >> SYSREG_OP0_SHIFT) & SYSREG_OP0_MASK,
+ (reg >> SYSREG_OP1_SHIFT) & SYSREG_OP1_MASK,
+ (reg >> SYSREG_OP2_SHIFT) & SYSREG_OP2_MASK);
+}
+
+static bool hvf_sysreg_read_cp(CPUState *cpu, uint32_t reg, uint64_t *val)
+{
+ ARMCPU *arm_cpu = ARM_CPU(cpu);
+ CPUARMState *env = &arm_cpu->env;
+ const ARMCPRegInfo *ri;
+
+ ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_reg2cp_reg(reg));
+ if (ri) {
+ if (ri->accessfn) {
+ if (ri->accessfn(env, ri, true) != CP_ACCESS_OK) {
+ return false;
+ }
+ }
+ if (ri->type & ARM_CP_CONST) {
+ *val = ri->resetvalue;
+ } else if (ri->readfn) {
+ *val = ri->readfn(env, ri);
+ } else {
+ *val = CPREG_FIELD64(env, ri);
+ }
+ trace_hvf_vgic_read(ri->name, *val);
+ return true;
+ }
+
+ return false;
+}
+
static int hvf_sysreg_read(CPUState *cpu, uint32_t reg, uint32_t rt)
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
val = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) /
gt_cntfrq_period_ns(arm_cpu);
break;
+ case SYSREG_PMCR_EL0:
+ val = env->cp15.c9_pmcr;
+ break;
+ case SYSREG_PMCCNTR_EL0:
+ pmu_op_start(env);
+ val = env->cp15.c15_ccnt;
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMCNTENCLR_EL0:
+ val = env->cp15.c9_pmcnten;
+ break;
+ case SYSREG_PMOVSCLR_EL0:
+ val = env->cp15.c9_pmovsr;
+ break;
+ case SYSREG_PMSELR_EL0:
+ val = env->cp15.c9_pmselr;
+ break;
+ case SYSREG_PMINTENCLR_EL1:
+ val = env->cp15.c9_pminten;
+ break;
+ case SYSREG_PMCCFILTR_EL0:
+ val = env->cp15.pmccfiltr_el0;
+ break;
+ case SYSREG_PMCNTENSET_EL0:
+ val = env->cp15.c9_pmcnten;
+ break;
+ case SYSREG_PMUSERENR_EL0:
+ val = env->cp15.c9_pmuserenr;
+ break;
+ case SYSREG_PMCEID0_EL0:
+ case SYSREG_PMCEID1_EL0:
+ /* We can't really count anything yet, declare all events invalid */
+ val = 0;
+ break;
case SYSREG_OSLSR_EL1:
val = env->cp15.oslsr_el1;
break;
case SYSREG_OSDLR_EL1:
/* Dummy register */
break;
+ case SYSREG_ICC_AP0R0_EL1:
+ case SYSREG_ICC_AP0R1_EL1:
+ case SYSREG_ICC_AP0R2_EL1:
+ case SYSREG_ICC_AP0R3_EL1:
+ case SYSREG_ICC_AP1R0_EL1:
+ case SYSREG_ICC_AP1R1_EL1:
+ case SYSREG_ICC_AP1R2_EL1:
+ case SYSREG_ICC_AP1R3_EL1:
+ case SYSREG_ICC_ASGI1R_EL1:
+ case SYSREG_ICC_BPR0_EL1:
+ case SYSREG_ICC_BPR1_EL1:
+ case SYSREG_ICC_DIR_EL1:
+ case SYSREG_ICC_EOIR0_EL1:
+ case SYSREG_ICC_EOIR1_EL1:
+ case SYSREG_ICC_HPPIR0_EL1:
+ case SYSREG_ICC_HPPIR1_EL1:
+ case SYSREG_ICC_IAR0_EL1:
+ case SYSREG_ICC_IAR1_EL1:
+ case SYSREG_ICC_IGRPEN0_EL1:
+ case SYSREG_ICC_IGRPEN1_EL1:
+ case SYSREG_ICC_PMR_EL1:
+ case SYSREG_ICC_SGI0R_EL1:
+ case SYSREG_ICC_SGI1R_EL1:
+ case SYSREG_ICC_SRE_EL1:
+ case SYSREG_ICC_CTLR_EL1:
+ /* Call the TCG sysreg handler. This is only safe for GICv3 regs. */
+ if (!hvf_sysreg_read_cp(cpu, reg, &val)) {
+ hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
+ }
+ break;
+ case SYSREG_DBGBVR0_EL1:
+ case SYSREG_DBGBVR1_EL1:
+ case SYSREG_DBGBVR2_EL1:
+ case SYSREG_DBGBVR3_EL1:
+ case SYSREG_DBGBVR4_EL1:
+ case SYSREG_DBGBVR5_EL1:
+ case SYSREG_DBGBVR6_EL1:
+ case SYSREG_DBGBVR7_EL1:
+ case SYSREG_DBGBVR8_EL1:
+ case SYSREG_DBGBVR9_EL1:
+ case SYSREG_DBGBVR10_EL1:
+ case SYSREG_DBGBVR11_EL1:
+ case SYSREG_DBGBVR12_EL1:
+ case SYSREG_DBGBVR13_EL1:
+ case SYSREG_DBGBVR14_EL1:
+ case SYSREG_DBGBVR15_EL1:
+ val = env->cp15.dbgbvr[SYSREG_CRM(reg)];
+ break;
+ case SYSREG_DBGBCR0_EL1:
+ case SYSREG_DBGBCR1_EL1:
+ case SYSREG_DBGBCR2_EL1:
+ case SYSREG_DBGBCR3_EL1:
+ case SYSREG_DBGBCR4_EL1:
+ case SYSREG_DBGBCR5_EL1:
+ case SYSREG_DBGBCR6_EL1:
+ case SYSREG_DBGBCR7_EL1:
+ case SYSREG_DBGBCR8_EL1:
+ case SYSREG_DBGBCR9_EL1:
+ case SYSREG_DBGBCR10_EL1:
+ case SYSREG_DBGBCR11_EL1:
+ case SYSREG_DBGBCR12_EL1:
+ case SYSREG_DBGBCR13_EL1:
+ case SYSREG_DBGBCR14_EL1:
+ case SYSREG_DBGBCR15_EL1:
+ val = env->cp15.dbgbcr[SYSREG_CRM(reg)];
+ break;
+ case SYSREG_DBGWVR0_EL1:
+ case SYSREG_DBGWVR1_EL1:
+ case SYSREG_DBGWVR2_EL1:
+ case SYSREG_DBGWVR3_EL1:
+ case SYSREG_DBGWVR4_EL1:
+ case SYSREG_DBGWVR5_EL1:
+ case SYSREG_DBGWVR6_EL1:
+ case SYSREG_DBGWVR7_EL1:
+ case SYSREG_DBGWVR8_EL1:
+ case SYSREG_DBGWVR9_EL1:
+ case SYSREG_DBGWVR10_EL1:
+ case SYSREG_DBGWVR11_EL1:
+ case SYSREG_DBGWVR12_EL1:
+ case SYSREG_DBGWVR13_EL1:
+ case SYSREG_DBGWVR14_EL1:
+ case SYSREG_DBGWVR15_EL1:
+ val = env->cp15.dbgwvr[SYSREG_CRM(reg)];
+ break;
+ case SYSREG_DBGWCR0_EL1:
+ case SYSREG_DBGWCR1_EL1:
+ case SYSREG_DBGWCR2_EL1:
+ case SYSREG_DBGWCR3_EL1:
+ case SYSREG_DBGWCR4_EL1:
+ case SYSREG_DBGWCR5_EL1:
+ case SYSREG_DBGWCR6_EL1:
+ case SYSREG_DBGWCR7_EL1:
+ case SYSREG_DBGWCR8_EL1:
+ case SYSREG_DBGWCR9_EL1:
+ case SYSREG_DBGWCR10_EL1:
+ case SYSREG_DBGWCR11_EL1:
+ case SYSREG_DBGWCR12_EL1:
+ case SYSREG_DBGWCR13_EL1:
+ case SYSREG_DBGWCR14_EL1:
+ case SYSREG_DBGWCR15_EL1:
+ val = env->cp15.dbgwcr[SYSREG_CRM(reg)];
+ break;
default:
+ if (is_id_sysreg(reg)) {
+ /* ID system registers read as RES0 */
+ val = 0;
+ break;
+ }
cpu_synchronize_state(cpu);
trace_hvf_unhandled_sysreg_read(env->pc, reg,
- (reg >> 20) & 0x3,
- (reg >> 14) & 0x7,
- (reg >> 10) & 0xf,
- (reg >> 1) & 0xf,
- (reg >> 17) & 0x7);
+ SYSREG_OP0(reg),
+ SYSREG_OP1(reg),
+ SYSREG_CRN(reg),
+ SYSREG_CRM(reg),
+ SYSREG_OP2(reg));
hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
return 1;
}
trace_hvf_sysreg_read(reg,
- (reg >> 20) & 0x3,
- (reg >> 14) & 0x7,
- (reg >> 10) & 0xf,
- (reg >> 1) & 0xf,
- (reg >> 17) & 0x7,
+ SYSREG_OP0(reg),
+ SYSREG_OP1(reg),
+ SYSREG_CRN(reg),
+ SYSREG_CRM(reg),
+ SYSREG_OP2(reg),
val);
hvf_set_reg(cpu, rt, val);
return 0;
}
+static void pmu_update_irq(CPUARMState *env)
+{
+ ARMCPU *cpu = env_archcpu(env);
+ qemu_set_irq(cpu->pmu_interrupt, (env->cp15.c9_pmcr & PMCRE) &&
+ (env->cp15.c9_pminten & env->cp15.c9_pmovsr));
+}
+
+static bool pmu_event_supported(uint16_t number)
+{
+ return false;
+}
+
+/* Returns true if the counter (pass 31 for PMCCNTR) should count events using
+ * the current EL, security state, and register configuration.
+ */
+static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter)
+{
+ uint64_t filter;
+ bool enabled, filtered = true;
+ int el = arm_current_el(env);
+
+ enabled = (env->cp15.c9_pmcr & PMCRE) &&
+ (env->cp15.c9_pmcnten & (1 << counter));
+
+ if (counter == 31) {
+ filter = env->cp15.pmccfiltr_el0;
+ } else {
+ filter = env->cp15.c14_pmevtyper[counter];
+ }
+
+ if (el == 0) {
+ filtered = filter & PMXEVTYPER_U;
+ } else if (el == 1) {
+ filtered = filter & PMXEVTYPER_P;
+ }
+
+ if (counter != 31) {
+ /*
+ * If not checking PMCCNTR, ensure the counter is setup to an event we
+ * support
+ */
+ uint16_t event = filter & PMXEVTYPER_EVTCOUNT;
+ if (!pmu_event_supported(event)) {
+ return false;
+ }
+ }
+
+ return enabled && !filtered;
+}
+
+static void pmswinc_write(CPUARMState *env, uint64_t value)
+{
+ unsigned int i;
+ for (i = 0; i < pmu_num_counters(env); i++) {
+ /* Increment a counter's count iff: */
+ if ((value & (1 << i)) && /* counter's bit is set */
+ /* counter is enabled and not filtered */
+ pmu_counter_enabled(env, i) &&
+ /* counter is SW_INCR */
+ (env->cp15.c14_pmevtyper[i] & PMXEVTYPER_EVTCOUNT) == 0x0) {
+ /*
+ * Detect if this write causes an overflow since we can't predict
+ * PMSWINC overflows like we can for other events
+ */
+ uint32_t new_pmswinc = env->cp15.c14_pmevcntr[i] + 1;
+
+ if (env->cp15.c14_pmevcntr[i] & ~new_pmswinc & INT32_MIN) {
+ env->cp15.c9_pmovsr |= (1 << i);
+ pmu_update_irq(env);
+ }
+
+ env->cp15.c14_pmevcntr[i] = new_pmswinc;
+ }
+ }
+}
+
+static bool hvf_sysreg_write_cp(CPUState *cpu, uint32_t reg, uint64_t val)
+{
+ ARMCPU *arm_cpu = ARM_CPU(cpu);
+ CPUARMState *env = &arm_cpu->env;
+ const ARMCPRegInfo *ri;
+
+ ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_reg2cp_reg(reg));
+
+ if (ri) {
+ if (ri->accessfn) {
+ if (ri->accessfn(env, ri, false) != CP_ACCESS_OK) {
+ return false;
+ }
+ }
+ if (ri->writefn) {
+ ri->writefn(env, ri, val);
+ } else {
+ CPREG_FIELD64(env, ri) = val;
+ }
+
+ trace_hvf_vgic_write(ri->name, val);
+ return true;
+ }
+
+ return false;
+}
+
static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val)
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
CPUARMState *env = &arm_cpu->env;
trace_hvf_sysreg_write(reg,
- (reg >> 20) & 0x3,
- (reg >> 14) & 0x7,
- (reg >> 10) & 0xf,
- (reg >> 1) & 0xf,
- (reg >> 17) & 0x7,
+ SYSREG_OP0(reg),
+ SYSREG_OP1(reg),
+ SYSREG_CRN(reg),
+ SYSREG_CRM(reg),
+ SYSREG_OP2(reg),
val);
switch (reg) {
+ case SYSREG_PMCCNTR_EL0:
+ pmu_op_start(env);
+ env->cp15.c15_ccnt = val;
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMCR_EL0:
+ pmu_op_start(env);
+
+ if (val & PMCRC) {
+ /* The counter has been reset */
+ env->cp15.c15_ccnt = 0;
+ }
+
+ if (val & PMCRP) {
+ unsigned int i;
+ for (i = 0; i < pmu_num_counters(env); i++) {
+ env->cp15.c14_pmevcntr[i] = 0;
+ }
+ }
+
+ env->cp15.c9_pmcr &= ~PMCR_WRITABLE_MASK;
+ env->cp15.c9_pmcr |= (val & PMCR_WRITABLE_MASK);
+
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMUSERENR_EL0:
+ env->cp15.c9_pmuserenr = val & 0xf;
+ break;
+ case SYSREG_PMCNTENSET_EL0:
+ env->cp15.c9_pmcnten |= (val & pmu_counter_mask(env));
+ break;
+ case SYSREG_PMCNTENCLR_EL0:
+ env->cp15.c9_pmcnten &= ~(val & pmu_counter_mask(env));
+ break;
+ case SYSREG_PMINTENCLR_EL1:
+ pmu_op_start(env);
+ env->cp15.c9_pminten |= val;
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMOVSCLR_EL0:
+ pmu_op_start(env);
+ env->cp15.c9_pmovsr &= ~val;
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMSWINC_EL0:
+ pmu_op_start(env);
+ pmswinc_write(env, val);
+ pmu_op_finish(env);
+ break;
+ case SYSREG_PMSELR_EL0:
+ env->cp15.c9_pmselr = val & 0x1f;
+ break;
+ case SYSREG_PMCCFILTR_EL0:
+ pmu_op_start(env);
+ env->cp15.pmccfiltr_el0 = val & PMCCFILTR_EL0;
+ pmu_op_finish(env);
+ break;
case SYSREG_OSLAR_EL1:
env->cp15.oslsr_el1 = val & 1;
break;
case SYSREG_OSDLR_EL1:
/* Dummy register */
break;
+ case SYSREG_ICC_AP0R0_EL1:
+ case SYSREG_ICC_AP0R1_EL1:
+ case SYSREG_ICC_AP0R2_EL1:
+ case SYSREG_ICC_AP0R3_EL1:
+ case SYSREG_ICC_AP1R0_EL1:
+ case SYSREG_ICC_AP1R1_EL1:
+ case SYSREG_ICC_AP1R2_EL1:
+ case SYSREG_ICC_AP1R3_EL1:
+ case SYSREG_ICC_ASGI1R_EL1:
+ case SYSREG_ICC_BPR0_EL1:
+ case SYSREG_ICC_BPR1_EL1:
+ case SYSREG_ICC_CTLR_EL1:
+ case SYSREG_ICC_DIR_EL1:
+ case SYSREG_ICC_EOIR0_EL1:
+ case SYSREG_ICC_EOIR1_EL1:
+ case SYSREG_ICC_HPPIR0_EL1:
+ case SYSREG_ICC_HPPIR1_EL1:
+ case SYSREG_ICC_IAR0_EL1:
+ case SYSREG_ICC_IAR1_EL1:
+ case SYSREG_ICC_IGRPEN0_EL1:
+ case SYSREG_ICC_IGRPEN1_EL1:
+ case SYSREG_ICC_PMR_EL1:
+ case SYSREG_ICC_SGI0R_EL1:
+ case SYSREG_ICC_SGI1R_EL1:
+ case SYSREG_ICC_SRE_EL1:
+ /* Call the TCG sysreg handler. This is only safe for GICv3 regs. */
+ if (!hvf_sysreg_write_cp(cpu, reg, val)) {
+ hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
+ }
+ break;
+ case SYSREG_MDSCR_EL1:
+ env->cp15.mdscr_el1 = val;
+ break;
+ case SYSREG_DBGBVR0_EL1:
+ case SYSREG_DBGBVR1_EL1:
+ case SYSREG_DBGBVR2_EL1:
+ case SYSREG_DBGBVR3_EL1:
+ case SYSREG_DBGBVR4_EL1:
+ case SYSREG_DBGBVR5_EL1:
+ case SYSREG_DBGBVR6_EL1:
+ case SYSREG_DBGBVR7_EL1:
+ case SYSREG_DBGBVR8_EL1:
+ case SYSREG_DBGBVR9_EL1:
+ case SYSREG_DBGBVR10_EL1:
+ case SYSREG_DBGBVR11_EL1:
+ case SYSREG_DBGBVR12_EL1:
+ case SYSREG_DBGBVR13_EL1:
+ case SYSREG_DBGBVR14_EL1:
+ case SYSREG_DBGBVR15_EL1:
+ env->cp15.dbgbvr[SYSREG_CRM(reg)] = val;
+ break;
+ case SYSREG_DBGBCR0_EL1:
+ case SYSREG_DBGBCR1_EL1:
+ case SYSREG_DBGBCR2_EL1:
+ case SYSREG_DBGBCR3_EL1:
+ case SYSREG_DBGBCR4_EL1:
+ case SYSREG_DBGBCR5_EL1:
+ case SYSREG_DBGBCR6_EL1:
+ case SYSREG_DBGBCR7_EL1:
+ case SYSREG_DBGBCR8_EL1:
+ case SYSREG_DBGBCR9_EL1:
+ case SYSREG_DBGBCR10_EL1:
+ case SYSREG_DBGBCR11_EL1:
+ case SYSREG_DBGBCR12_EL1:
+ case SYSREG_DBGBCR13_EL1:
+ case SYSREG_DBGBCR14_EL1:
+ case SYSREG_DBGBCR15_EL1:
+ env->cp15.dbgbcr[SYSREG_CRM(reg)] = val;
+ break;
+ case SYSREG_DBGWVR0_EL1:
+ case SYSREG_DBGWVR1_EL1:
+ case SYSREG_DBGWVR2_EL1:
+ case SYSREG_DBGWVR3_EL1:
+ case SYSREG_DBGWVR4_EL1:
+ case SYSREG_DBGWVR5_EL1:
+ case SYSREG_DBGWVR6_EL1:
+ case SYSREG_DBGWVR7_EL1:
+ case SYSREG_DBGWVR8_EL1:
+ case SYSREG_DBGWVR9_EL1:
+ case SYSREG_DBGWVR10_EL1:
+ case SYSREG_DBGWVR11_EL1:
+ case SYSREG_DBGWVR12_EL1:
+ case SYSREG_DBGWVR13_EL1:
+ case SYSREG_DBGWVR14_EL1:
+ case SYSREG_DBGWVR15_EL1:
+ env->cp15.dbgwvr[SYSREG_CRM(reg)] = val;
+ break;
+ case SYSREG_DBGWCR0_EL1:
+ case SYSREG_DBGWCR1_EL1:
+ case SYSREG_DBGWCR2_EL1:
+ case SYSREG_DBGWCR3_EL1:
+ case SYSREG_DBGWCR4_EL1:
+ case SYSREG_DBGWCR5_EL1:
+ case SYSREG_DBGWCR6_EL1:
+ case SYSREG_DBGWCR7_EL1:
+ case SYSREG_DBGWCR8_EL1:
+ case SYSREG_DBGWCR9_EL1:
+ case SYSREG_DBGWCR10_EL1:
+ case SYSREG_DBGWCR11_EL1:
+ case SYSREG_DBGWCR12_EL1:
+ case SYSREG_DBGWCR13_EL1:
+ case SYSREG_DBGWCR14_EL1:
+ case SYSREG_DBGWCR15_EL1:
+ env->cp15.dbgwcr[SYSREG_CRM(reg)] = val;
+ break;
default:
cpu_synchronize_state(cpu);
trace_hvf_unhandled_sysreg_write(env->pc, reg,
- (reg >> 20) & 0x3,
- (reg >> 14) & 0x7,
- (reg >> 10) & 0xf,
- (reg >> 1) & 0xf,
- (reg >> 17) & 0x7);
+ SYSREG_OP0(reg),
+ SYSREG_OP1(reg),
+ SYSREG_CRN(reg),
+ SYSREG_CRM(reg),
+ SYSREG_OP2(reg));
hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized());
return 1;
}
{
if (cpu->interrupt_request & CPU_INTERRUPT_FIQ) {
trace_hvf_inject_fiq();
- hv_vcpu_set_pending_interrupt(cpu->hvf->fd, HV_INTERRUPT_TYPE_FIQ,
+ hv_vcpu_set_pending_interrupt(cpu->accel->fd, HV_INTERRUPT_TYPE_FIQ,
true);
}
if (cpu->interrupt_request & CPU_INTERRUPT_HARD) {
trace_hvf_inject_irq();
- hv_vcpu_set_pending_interrupt(cpu->hvf->fd, HV_INTERRUPT_TYPE_IRQ,
+ hv_vcpu_set_pending_interrupt(cpu->accel->fd, HV_INTERRUPT_TYPE_IRQ,
true);
}
* Use pselect to sleep so that other threads can IPI us while we're
* sleeping.
*/
- qatomic_mb_set(&cpu->thread_kicked, false);
- qemu_mutex_unlock_iothread();
- pselect(0, 0, 0, 0, ts, &cpu->hvf->unblock_ipi_mask);
- qemu_mutex_lock_iothread();
+ qatomic_set_mb(&cpu->thread_kicked, false);
+ bql_unlock();
+ pselect(0, 0, 0, 0, ts, &cpu->accel->unblock_ipi_mask);
+ bql_lock();
}
static void hvf_wfi(CPUState *cpu)
return;
}
- r = hv_vcpu_get_sys_reg(cpu->hvf->fd, HV_SYS_REG_CNTV_CTL_EL0, &ctl);
+ r = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_CNTV_CTL_EL0, &ctl);
assert_hvf_ok(r);
if (!(ctl & 1) || (ctl & 2)) {
return;
}
- r = hv_vcpu_get_sys_reg(cpu->hvf->fd, HV_SYS_REG_CNTV_CVAL_EL0, &cval);
+ r = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_CNTV_CVAL_EL0, &cval);
assert_hvf_ok(r);
ticks_to_sleep = cval - hvf_vtimer_val();
uint64_t ctl;
bool irq_state;
- if (!cpu->hvf->vtimer_masked) {
+ if (!cpu->accel->vtimer_masked) {
/* We will get notified on vtimer changes by hvf, nothing to do */
return;
}
- r = hv_vcpu_get_sys_reg(cpu->hvf->fd, HV_SYS_REG_CNTV_CTL_EL0, &ctl);
+ r = hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_CNTV_CTL_EL0, &ctl);
assert_hvf_ok(r);
irq_state = (ctl & (TMR_CTL_ENABLE | TMR_CTL_IMASK | TMR_CTL_ISTATUS)) ==
if (!irq_state) {
/* Timer no longer asserting, we can unmask it */
- hv_vcpu_set_vtimer_mask(cpu->hvf->fd, false);
- cpu->hvf->vtimer_masked = false;
+ hv_vcpu_set_vtimer_mask(cpu->accel->fd, false);
+ cpu->accel->vtimer_masked = false;
}
}
{
ARMCPU *arm_cpu = ARM_CPU(cpu);
CPUARMState *env = &arm_cpu->env;
- hv_vcpu_exit_t *hvf_exit = cpu->hvf->exit;
+ int ret;
+ hv_vcpu_exit_t *hvf_exit = cpu->accel->exit;
hv_return_t r;
bool advance_pc = false;
- if (hvf_inject_interrupts(cpu)) {
+ if (!(cpu->singlestep_enabled & SSTEP_NOIRQ) &&
+ hvf_inject_interrupts(cpu)) {
return EXCP_INTERRUPT;
}
flush_cpu_state(cpu);
- qemu_mutex_unlock_iothread();
- assert_hvf_ok(hv_vcpu_run(cpu->hvf->fd));
+ bql_unlock();
+ assert_hvf_ok(hv_vcpu_run(cpu->accel->fd));
/* handle VMEXIT */
uint64_t exit_reason = hvf_exit->reason;
uint64_t syndrome = hvf_exit->exception.syndrome;
uint32_t ec = syn_get_ec(syndrome);
- qemu_mutex_lock_iothread();
+ ret = 0;
+ bql_lock();
switch (exit_reason) {
case HV_EXIT_REASON_EXCEPTION:
/* This is the main one, handle below. */
break;
case HV_EXIT_REASON_VTIMER_ACTIVATED:
qemu_set_irq(arm_cpu->gt_timer_outputs[GTIMER_VIRT], 1);
- cpu->hvf->vtimer_masked = true;
+ cpu->accel->vtimer_masked = true;
return 0;
case HV_EXIT_REASON_CANCELED:
/* we got kicked, no exit to process */
return 0;
default:
- assert(0);
+ g_assert_not_reached();
}
hvf_sync_vtimer(cpu);
switch (ec) {
+ case EC_SOFTWARESTEP: {
+ ret = EXCP_DEBUG;
+
+ if (!cpu->singlestep_enabled) {
+ error_report("EC_SOFTWARESTEP but single-stepping not enabled");
+ }
+ break;
+ }
+ case EC_AA64_BKPT: {
+ ret = EXCP_DEBUG;
+
+ cpu_synchronize_state(cpu);
+
+ if (!hvf_find_sw_breakpoint(cpu, env->pc)) {
+ /* Re-inject into the guest */
+ ret = 0;
+ hvf_raise_exception(cpu, EXCP_BKPT, syn_aa64_bkpt(0));
+ }
+ break;
+ }
+ case EC_BREAKPOINT: {
+ ret = EXCP_DEBUG;
+
+ cpu_synchronize_state(cpu);
+
+ if (!find_hw_breakpoint(cpu, env->pc)) {
+ error_report("EC_BREAKPOINT but unknown hw breakpoint");
+ }
+ break;
+ }
+ case EC_WATCHPOINT: {
+ ret = EXCP_DEBUG;
+
+ cpu_synchronize_state(cpu);
+
+ CPUWatchpoint *wp =
+ find_hw_watchpoint(cpu, hvf_exit->exception.virtual_address);
+ if (!wp) {
+ error_report("EXCP_DEBUG but unknown hw watchpoint");
+ }
+ cpu->watchpoint_hit = wp;
+ break;
+ }
case EC_DATAABORT: {
bool isv = syndrome & ARM_EL_ISV;
bool iswrite = (syndrome >> 6) & 1;
uint32_t sas = (syndrome >> 22) & 3;
uint32_t len = 1 << sas;
uint32_t srt = (syndrome >> 16) & 0x1f;
+ uint32_t cm = (syndrome >> 8) & 0x1;
uint64_t val = 0;
trace_hvf_data_abort(env->pc, hvf_exit->exception.virtual_address,
hvf_exit->exception.physical_address, isv,
iswrite, s1ptw, len, srt);
+ if (cm) {
+ /* We don't cache MMIO regions */
+ advance_pc = true;
+ break;
+ }
+
assert(isv);
if (iswrite) {
uint32_t rt = (syndrome >> 5) & 0x1f;
uint32_t reg = syndrome & SYSREG_MASK;
uint64_t val;
- int ret = 0;
+ int sysreg_ret = 0;
if (isread) {
- ret = hvf_sysreg_read(cpu, reg, rt);
+ sysreg_ret = hvf_sysreg_read(cpu, reg, rt);
} else {
val = hvf_get_reg(cpu, rt);
- ret = hvf_sysreg_write(cpu, reg, val);
+ sysreg_ret = hvf_sysreg_write(cpu, reg, val);
}
- advance_pc = !ret;
+ advance_pc = !sysreg_ret;
break;
}
case EC_WFX_TRAP:
flush_cpu_state(cpu);
- r = hv_vcpu_get_reg(cpu->hvf->fd, HV_REG_PC, &pc);
+ r = hv_vcpu_get_reg(cpu->accel->fd, HV_REG_PC, &pc);
assert_hvf_ok(r);
pc += 4;
- r = hv_vcpu_set_reg(cpu->hvf->fd, HV_REG_PC, pc);
+ r = hv_vcpu_set_reg(cpu->accel->fd, HV_REG_PC, pc);
assert_hvf_ok(r);
+
+ /* Handle single-stepping over instructions which trigger a VM exit */
+ if (cpu->singlestep_enabled) {
+ ret = EXCP_DEBUG;
+ }
}
- return 0;
+ return ret;
}
static const VMStateDescription vmstate_hvf_vtimer = {
.name = "hvf-vtimer",
.version_id = 1,
.minimum_version_id = 1,
- .fields = (VMStateField[]) {
+ .fields = (const VMStateField[]) {
VMSTATE_UINT64(vtimer_val, HVFVTimer),
VMSTATE_END_OF_LIST()
},
hvf_state->vtimer_offset = mach_absolute_time();
vmstate_register(NULL, 0, &vmstate_hvf_vtimer, &vtimer);
qemu_add_vm_change_state_handler(hvf_vm_state_change, &vtimer);
+
+ hvf_arm_init_debug();
+
return 0;
}
+
+static const uint32_t brk_insn = 0xd4200000;
+
+int hvf_arch_insert_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp)
+{
+ if (cpu_memory_rw_debug(cpu, bp->pc, (uint8_t *)&bp->saved_insn, 4, 0) ||
+ cpu_memory_rw_debug(cpu, bp->pc, (uint8_t *)&brk_insn, 4, 1)) {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int hvf_arch_remove_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp)
+{
+ static uint32_t brk;
+
+ if (cpu_memory_rw_debug(cpu, bp->pc, (uint8_t *)&brk, 4, 0) ||
+ brk != brk_insn ||
+ cpu_memory_rw_debug(cpu, bp->pc, (uint8_t *)&bp->saved_insn, 4, 1)) {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int hvf_arch_insert_hw_breakpoint(vaddr addr, vaddr len, int type)
+{
+ switch (type) {
+ case GDB_BREAKPOINT_HW:
+ return insert_hw_breakpoint(addr);
+ case GDB_WATCHPOINT_READ:
+ case GDB_WATCHPOINT_WRITE:
+ case GDB_WATCHPOINT_ACCESS:
+ return insert_hw_watchpoint(addr, len, type);
+ default:
+ return -ENOSYS;
+ }
+}
+
+int hvf_arch_remove_hw_breakpoint(vaddr addr, vaddr len, int type)
+{
+ switch (type) {
+ case GDB_BREAKPOINT_HW:
+ return delete_hw_breakpoint(addr);
+ case GDB_WATCHPOINT_READ:
+ case GDB_WATCHPOINT_WRITE:
+ case GDB_WATCHPOINT_ACCESS:
+ return delete_hw_watchpoint(addr, len, type);
+ default:
+ return -ENOSYS;
+ }
+}
+
+void hvf_arch_remove_all_hw_breakpoints(void)
+{
+ if (cur_hw_wps > 0) {
+ g_array_remove_range(hw_watchpoints, 0, cur_hw_wps);
+ }
+ if (cur_hw_bps > 0) {
+ g_array_remove_range(hw_breakpoints, 0, cur_hw_bps);
+ }
+}
+
+/*
+ * Update the vCPU with the gdbstub's view of debug registers. This view
+ * consists of all hardware breakpoints and watchpoints inserted so far while
+ * debugging the guest.
+ */
+static void hvf_put_gdbstub_debug_registers(CPUState *cpu)
+{
+ hv_return_t r = HV_SUCCESS;
+ int i;
+
+ for (i = 0; i < cur_hw_bps; i++) {
+ HWBreakpoint *bp = get_hw_bp(i);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbcr_regs[i], bp->bcr);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbvr_regs[i], bp->bvr);
+ assert_hvf_ok(r);
+ }
+ for (i = cur_hw_bps; i < max_hw_bps; i++) {
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbcr_regs[i], 0);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbvr_regs[i], 0);
+ assert_hvf_ok(r);
+ }
+
+ for (i = 0; i < cur_hw_wps; i++) {
+ HWWatchpoint *wp = get_hw_wp(i);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwcr_regs[i], wp->wcr);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwvr_regs[i], wp->wvr);
+ assert_hvf_ok(r);
+ }
+ for (i = cur_hw_wps; i < max_hw_wps; i++) {
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwcr_regs[i], 0);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwvr_regs[i], 0);
+ assert_hvf_ok(r);
+ }
+}
+
+/*
+ * Update the vCPU with the guest's view of debug registers. This view is kept
+ * in the environment at all times.
+ */
+static void hvf_put_guest_debug_registers(CPUState *cpu)
+{
+ ARMCPU *arm_cpu = ARM_CPU(cpu);
+ CPUARMState *env = &arm_cpu->env;
+ hv_return_t r = HV_SUCCESS;
+ int i;
+
+ for (i = 0; i < max_hw_bps; i++) {
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbcr_regs[i],
+ env->cp15.dbgbcr[i]);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgbvr_regs[i],
+ env->cp15.dbgbvr[i]);
+ assert_hvf_ok(r);
+ }
+
+ for (i = 0; i < max_hw_wps; i++) {
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwcr_regs[i],
+ env->cp15.dbgwcr[i]);
+ assert_hvf_ok(r);
+ r = hv_vcpu_set_sys_reg(cpu->accel->fd, dbgwvr_regs[i],
+ env->cp15.dbgwvr[i]);
+ assert_hvf_ok(r);
+ }
+}
+
+static inline bool hvf_arm_hw_debug_active(CPUState *cpu)
+{
+ return ((cur_hw_wps > 0) || (cur_hw_bps > 0));
+}
+
+static void hvf_arch_set_traps(void)
+{
+ CPUState *cpu;
+ bool should_enable_traps = false;
+ hv_return_t r = HV_SUCCESS;
+
+ /* Check whether guest debugging is enabled for at least one vCPU; if it
+ * is, enable exiting the guest on all vCPUs */
+ CPU_FOREACH(cpu) {
+ should_enable_traps |= cpu->accel->guest_debug_enabled;
+ }
+ CPU_FOREACH(cpu) {
+ /* Set whether debug exceptions exit the guest */
+ r = hv_vcpu_set_trap_debug_exceptions(cpu->accel->fd,
+ should_enable_traps);
+ assert_hvf_ok(r);
+
+ /* Set whether accesses to debug registers exit the guest */
+ r = hv_vcpu_set_trap_debug_reg_accesses(cpu->accel->fd,
+ should_enable_traps);
+ assert_hvf_ok(r);
+ }
+}
+
+void hvf_arch_update_guest_debug(CPUState *cpu)
+{
+ ARMCPU *arm_cpu = ARM_CPU(cpu);
+ CPUARMState *env = &arm_cpu->env;
+
+ /* Check whether guest debugging is enabled */
+ cpu->accel->guest_debug_enabled = cpu->singlestep_enabled ||
+ hvf_sw_breakpoints_active(cpu) ||
+ hvf_arm_hw_debug_active(cpu);
+
+ /* Update debug registers */
+ if (cpu->accel->guest_debug_enabled) {
+ hvf_put_gdbstub_debug_registers(cpu);
+ } else {
+ hvf_put_guest_debug_registers(cpu);
+ }
+
+ cpu_synchronize_state(cpu);
+
+ /* Enable/disable single-stepping */
+ if (cpu->singlestep_enabled) {
+ env->cp15.mdscr_el1 =
+ deposit64(env->cp15.mdscr_el1, MDSCR_EL1_SS_SHIFT, 1, 1);
+ pstate_write(env, pstate_read(env) | PSTATE_SS);
+ } else {
+ env->cp15.mdscr_el1 =
+ deposit64(env->cp15.mdscr_el1, MDSCR_EL1_SS_SHIFT, 1, 0);
+ }
+
+ /* Enable/disable Breakpoint exceptions */
+ if (hvf_arm_hw_debug_active(cpu)) {
+ env->cp15.mdscr_el1 =
+ deposit64(env->cp15.mdscr_el1, MDSCR_EL1_MDE_SHIFT, 1, 1);
+ } else {
+ env->cp15.mdscr_el1 =
+ deposit64(env->cp15.mdscr_el1, MDSCR_EL1_MDE_SHIFT, 1, 0);
+ }
+
+ hvf_arch_set_traps();
+}
+
+inline bool hvf_arch_supports_guest_debug(void)
+{
+ return true;
+}
projects / mirror_qemu.git / blobdiff