#include <sys/utsname.h>
#include <linux/kvm.h>
+#include <linux/kvm_para.h>
#include "qemu-common.h"
#include "sysemu.h"
#include "hw/apic.h"
#include "ioport.h"
-#ifdef CONFIG_KVM_PARA
-#include <linux/kvm_para.h>
-#endif
-//
//#define DEBUG_KVM
#ifdef DEBUG_KVM
static bool has_msr_star;
static bool has_msr_hsave_pa;
-#if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
static bool has_msr_async_pf_en;
-#endif
static int lm_capable_kernel;
static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max)
return cpuid;
}
-#ifdef CONFIG_KVM_PARA
struct kvm_para_features {
int cap;
int feature;
return features;
}
-#endif
uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
int i, max;
uint32_t ret = 0;
uint32_t cpuid_1_edx;
-#ifdef CONFIG_KVM_PARA
int has_kvm_features = 0;
-#endif
max = 1;
while ((cpuid = try_get_cpuid(env->kvm_state, max)) == NULL) {
for (i = 0; i < cpuid->nent; ++i) {
if (cpuid->entries[i].function == function &&
cpuid->entries[i].index == index) {
-#ifdef CONFIG_KVM_PARA
if (cpuid->entries[i].function == KVM_CPUID_FEATURES) {
has_kvm_features = 1;
}
-#endif
switch (reg) {
case R_EAX:
ret = cpuid->entries[i].eax;
qemu_free(cpuid);
-#ifdef CONFIG_KVM_PARA
/* fallback for older kernels */
if (!has_kvm_features && (function == KVM_CPUID_FEATURES)) {
ret = get_para_features(env);
}
-#endif
return ret;
}
uint32_t limit, i, j, cpuid_i;
uint32_t unused;
struct kvm_cpuid_entry2 *c;
-#ifdef CONFIG_KVM_PARA
uint32_t signature[3];
-#endif
env->cpuid_features &= kvm_arch_get_supported_cpuid(env, 1, 0, R_EDX);
cpuid_i = 0;
-#ifdef CONFIG_KVM_PARA
/* Paravirtualization CPUIDs */
memcpy(signature, "KVMKVMKVM\0\0\0", 12);
c = &cpuid_data.entries[cpuid_i++];
#ifdef KVM_CAP_ASYNC_PF
has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF);
-#endif
-
#endif
cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused);
fpu.fsw = env->fpus & ~(7 << 11);
fpu.fsw |= (env->fpstt & 7) << 11;
fpu.fcw = env->fpuc;
+ fpu.last_opcode = env->fpop;
+ fpu.last_ip = env->fpip;
+ fpu.last_dp = env->fpdp;
for (i = 0; i < 8; ++i) {
fpu.ftwx |= (!env->fptags[i]) << i;
}
#ifdef KVM_CAP_XSAVE
int i, r;
struct kvm_xsave* xsave;
- uint16_t cwd, swd, twd, fop;
+ uint16_t cwd, swd, twd;
if (!kvm_has_xsave()) {
return kvm_put_fpu(env);
xsave = qemu_memalign(4096, sizeof(struct kvm_xsave));
memset(xsave, 0, sizeof(struct kvm_xsave));
- cwd = swd = twd = fop = 0;
+ cwd = swd = twd = 0;
swd = env->fpus & ~(7 << 11);
swd |= (env->fpstt & 7) << 11;
cwd = env->fpuc;
twd |= (!env->fptags[i]) << i;
}
xsave->region[0] = (uint32_t)(swd << 16) + cwd;
- xsave->region[1] = (uint32_t)(fop << 16) + twd;
+ xsave->region[1] = (uint32_t)(env->fpop << 16) + twd;
+ memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
+ memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs,
sizeof env->fpregs);
memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs,
kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME,
env->system_time_msr);
kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr);
-#if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
if (has_msr_async_pf_en) {
kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN,
env->async_pf_en_msr);
}
-#endif
}
#ifdef KVM_CAP_MCE
if (env->mcg_cap) {
env->fpstt = (fpu.fsw >> 11) & 7;
env->fpus = fpu.fsw;
env->fpuc = fpu.fcw;
+ env->fpop = fpu.last_opcode;
+ env->fpip = fpu.last_ip;
+ env->fpdp = fpu.last_dp;
for (i = 0; i < 8; ++i) {
env->fptags[i] = !((fpu.ftwx >> i) & 1);
}
#ifdef KVM_CAP_XSAVE
struct kvm_xsave* xsave;
int ret, i;
- uint16_t cwd, swd, twd, fop;
+ uint16_t cwd, swd, twd;
if (!kvm_has_xsave()) {
return kvm_get_fpu(env);
cwd = (uint16_t)xsave->region[0];
swd = (uint16_t)(xsave->region[0] >> 16);
twd = (uint16_t)xsave->region[1];
- fop = (uint16_t)(xsave->region[1] >> 16);
+ env->fpop = (uint16_t)(xsave->region[1] >> 16);
env->fpstt = (swd >> 11) & 7;
env->fpus = swd;
env->fpuc = cwd;
for (i = 0; i < 8; ++i) {
env->fptags[i] = !((twd >> i) & 1);
}
+ memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip));
+ memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp));
env->mxcsr = xsave->region[XSAVE_MXCSR];
memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE],
sizeof env->fpregs);
#endif
msrs[n++].index = MSR_KVM_SYSTEM_TIME;
msrs[n++].index = MSR_KVM_WALL_CLOCK;
-#if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
if (has_msr_async_pf_en) {
msrs[n++].index = MSR_KVM_ASYNC_PF_EN;
}
-#endif
#ifdef KVM_CAP_MCE
if (env->mcg_cap) {
}
#endif
break;
-#if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
case MSR_KVM_ASYNC_PF_EN:
env->async_pf_en_msr = msrs[i].data;
break;
-#endif
}
}