x86: avoid AREG0 for SVM helpers
Add an explicit CPUX86State parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/target-i386/svm_helper.c b/target-i386/svm_helper.c
index 64d842c..f370ac5 100644
--- a/target-i386/svm_helper.c
+++ b/target-i386/svm_helper.c
@@ -18,46 +18,46 @@
*/
#include "cpu.h"
-#include "dyngen-exec.h"
+#include "cpu-all.h"
#include "helper.h"
/* Secure Virtual Machine helpers */
#if defined(CONFIG_USER_ONLY)
-void helper_vmrun(int aflag, int next_eip_addend)
+void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend)
{
}
-void helper_vmmcall(void)
+void helper_vmmcall(CPUX86State *env)
{
}
-void helper_vmload(int aflag)
+void helper_vmload(CPUX86State *env, int aflag)
{
}
-void helper_vmsave(int aflag)
+void helper_vmsave(CPUX86State *env, int aflag)
{
}
-void helper_stgi(void)
+void helper_stgi(CPUX86State *env)
{
}
-void helper_clgi(void)
+void helper_clgi(CPUX86State *env)
{
}
-void helper_skinit(void)
+void helper_skinit(CPUX86State *env)
{
}
-void helper_invlpga(int aflag)
+void helper_invlpga(CPUX86State *env, int aflag)
{
}
-void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+void helper_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1)
{
}
@@ -65,7 +65,8 @@
{
}
-void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+void helper_svm_check_intercept_param(CPUX86State *env, uint32_t type,
+ uint64_t param)
{
}
@@ -74,13 +75,13 @@
{
}
-void helper_svm_check_io(uint32_t port, uint32_t param,
+void helper_svm_check_io(CPUX86State *env, uint32_t port, uint32_t param,
uint32_t next_eip_addend)
{
}
#else
-static inline void svm_save_seg(target_phys_addr_t addr,
+static inline void svm_save_seg(CPUX86State *env, target_phys_addr_t addr,
const SegmentCache *sc)
{
stw_phys(addr + offsetof(struct vmcb_seg, selector),
@@ -93,7 +94,8 @@
((sc->flags >> 8) & 0xff) | ((sc->flags >> 12) & 0x0f00));
}
-static inline void svm_load_seg(target_phys_addr_t addr, SegmentCache *sc)
+static inline void svm_load_seg(CPUX86State *env, target_phys_addr_t addr,
+ SegmentCache *sc)
{
unsigned int flags;
@@ -104,23 +106,23 @@
sc->flags = ((flags & 0xff) << 8) | ((flags & 0x0f00) << 12);
}
-static inline void svm_load_seg_cache(target_phys_addr_t addr,
- CPUX86State *env, int seg_reg)
+static inline void svm_load_seg_cache(CPUX86State *env, target_phys_addr_t addr,
+ int seg_reg)
{
SegmentCache sc1, *sc = &sc1;
- svm_load_seg(addr, sc);
+ svm_load_seg(env, addr, sc);
cpu_x86_load_seg_cache(env, seg_reg, sc->selector,
sc->base, sc->limit, sc->flags);
}
-void helper_vmrun(int aflag, int next_eip_addend)
+void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend)
{
target_ulong addr;
uint32_t event_inj;
uint32_t int_ctl;
- helper_svm_check_intercept_param(SVM_EXIT_VMRUN, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_VMRUN, 0);
if (aflag == 2) {
addr = EAX;
@@ -154,13 +156,13 @@
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rflags),
cpu_compute_eflags(env));
- svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.es),
+ svm_save_seg(env, env->vm_hsave + offsetof(struct vmcb, save.es),
&env->segs[R_ES]);
- svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.cs),
+ svm_save_seg(env, env->vm_hsave + offsetof(struct vmcb, save.cs),
&env->segs[R_CS]);
- svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ss),
+ svm_save_seg(env, env->vm_hsave + offsetof(struct vmcb, save.ss),
&env->segs[R_SS]);
- svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ds),
+ svm_save_seg(env, env->vm_hsave + offsetof(struct vmcb, save.ds),
&env->segs[R_DS]);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip),
@@ -233,14 +235,14 @@
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
CC_OP = CC_OP_EFLAGS;
- svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.es),
- env, R_ES);
- svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.cs),
- env, R_CS);
- svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ss),
- env, R_SS);
- svm_load_seg_cache(env->vm_vmcb + offsetof(struct vmcb, save.ds),
- env, R_DS);
+ svm_load_seg_cache(env, env->vm_vmcb + offsetof(struct vmcb, save.es),
+ R_ES);
+ svm_load_seg_cache(env, env->vm_vmcb + offsetof(struct vmcb, save.cs),
+ R_CS);
+ svm_load_seg_cache(env, env->vm_vmcb + offsetof(struct vmcb, save.ss),
+ R_SS);
+ svm_load_seg_cache(env, env->vm_vmcb + offsetof(struct vmcb, save.ds),
+ R_DS);
EIP = ldq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip));
env->eip = EIP;
@@ -320,17 +322,17 @@
}
}
-void helper_vmmcall(void)
+void helper_vmmcall(CPUX86State *env)
{
- helper_svm_check_intercept_param(SVM_EXIT_VMMCALL, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_VMMCALL, 0);
raise_exception(env, EXCP06_ILLOP);
}
-void helper_vmload(int aflag)
+void helper_vmload(CPUX86State *env, int aflag)
{
target_ulong addr;
- helper_svm_check_intercept_param(SVM_EXIT_VMLOAD, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_VMLOAD, 0);
if (aflag == 2) {
addr = EAX;
@@ -340,17 +342,14 @@
qemu_log_mask(CPU_LOG_TB_IN_ASM, "vmload! " TARGET_FMT_lx
"\nFS: %016" PRIx64 " | " TARGET_FMT_lx "\n",
- addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
+ addr, ldq_phys(addr + offsetof(struct vmcb,
+ save.fs.base)),
env->segs[R_FS].base);
- svm_load_seg_cache(addr + offsetof(struct vmcb, save.fs),
- env, R_FS);
- svm_load_seg_cache(addr + offsetof(struct vmcb, save.gs),
- env, R_GS);
- svm_load_seg(addr + offsetof(struct vmcb, save.tr),
- &env->tr);
- svm_load_seg(addr + offsetof(struct vmcb, save.ldtr),
- &env->ldt);
+ svm_load_seg_cache(env, addr + offsetof(struct vmcb, save.fs), R_FS);
+ svm_load_seg_cache(env, addr + offsetof(struct vmcb, save.gs), R_GS);
+ svm_load_seg(env, addr + offsetof(struct vmcb, save.tr), &env->tr);
+ svm_load_seg(env, addr + offsetof(struct vmcb, save.ldtr), &env->ldt);
#ifdef TARGET_X86_64
env->kernelgsbase = ldq_phys(addr + offsetof(struct vmcb,
@@ -367,11 +366,11 @@
save.sysenter_eip));
}
-void helper_vmsave(int aflag)
+void helper_vmsave(CPUX86State *env, int aflag)
{
target_ulong addr;
- helper_svm_check_intercept_param(SVM_EXIT_VMSAVE, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_VMSAVE, 0);
if (aflag == 2) {
addr = EAX;
@@ -384,13 +383,13 @@
addr, ldq_phys(addr + offsetof(struct vmcb, save.fs.base)),
env->segs[R_FS].base);
- svm_save_seg(addr + offsetof(struct vmcb, save.fs),
+ svm_save_seg(env, addr + offsetof(struct vmcb, save.fs),
&env->segs[R_FS]);
- svm_save_seg(addr + offsetof(struct vmcb, save.gs),
+ svm_save_seg(env, addr + offsetof(struct vmcb, save.gs),
&env->segs[R_GS]);
- svm_save_seg(addr + offsetof(struct vmcb, save.tr),
+ svm_save_seg(env, addr + offsetof(struct vmcb, save.tr),
&env->tr);
- svm_save_seg(addr + offsetof(struct vmcb, save.ldtr),
+ svm_save_seg(env, addr + offsetof(struct vmcb, save.ldtr),
&env->ldt);
#ifdef TARGET_X86_64
@@ -408,30 +407,30 @@
env->sysenter_eip);
}
-void helper_stgi(void)
+void helper_stgi(CPUX86State *env)
{
- helper_svm_check_intercept_param(SVM_EXIT_STGI, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_STGI, 0);
env->hflags2 |= HF2_GIF_MASK;
}
-void helper_clgi(void)
+void helper_clgi(CPUX86State *env)
{
- helper_svm_check_intercept_param(SVM_EXIT_CLGI, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_CLGI, 0);
env->hflags2 &= ~HF2_GIF_MASK;
}
-void helper_skinit(void)
+void helper_skinit(CPUX86State *env)
{
- helper_svm_check_intercept_param(SVM_EXIT_SKINIT, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_SKINIT, 0);
/* XXX: not implemented */
raise_exception(env, EXCP06_ILLOP);
}
-void helper_invlpga(int aflag)
+void helper_invlpga(CPUX86State *env, int aflag)
{
target_ulong addr;
- helper_svm_check_intercept_param(SVM_EXIT_INVLPGA, 0);
+ cpu_svm_check_intercept_param(env, SVM_EXIT_INVLPGA, 0);
if (aflag == 2) {
addr = EAX;
@@ -444,7 +443,8 @@
tlb_flush_page(env, addr);
}
-void helper_svm_check_intercept_param(uint32_t type, uint64_t param)
+void helper_svm_check_intercept_param(CPUX86State *env, uint32_t type,
+ uint64_t param)
{
if (likely(!(env->hflags & HF_SVMI_MASK))) {
return;
@@ -452,27 +452,27 @@
switch (type) {
case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR0 + 8:
if (env->intercept_cr_read & (1 << (type - SVM_EXIT_READ_CR0))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR0 + 8:
if (env->intercept_cr_write & (1 << (type - SVM_EXIT_WRITE_CR0))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR0 + 7:
if (env->intercept_dr_read & (1 << (type - SVM_EXIT_READ_DR0))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR0 + 7:
if (env->intercept_dr_write & (1 << (type - SVM_EXIT_WRITE_DR0))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 31:
if (env->intercept_exceptions & (1 << (type - SVM_EXIT_EXCP_BASE))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
case SVM_EXIT_MSR:
@@ -499,36 +499,31 @@
t0 %= 8;
break;
default:
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
t0 = 0;
t1 = 0;
break;
}
if (ldub_phys(addr + t1) & ((1 << param) << t0)) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
}
break;
default:
if (env->intercept & (1ULL << (type - SVM_EXIT_INTR))) {
- helper_vmexit(type, param);
+ helper_vmexit(env, type, param);
}
break;
}
}
-void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type,
+void cpu_svm_check_intercept_param(CPUX86State *env, uint32_t type,
uint64_t param)
{
- CPUX86State *saved_env;
-
- saved_env = env;
- env = env1;
- helper_svm_check_intercept_param(type, param);
- env = saved_env;
+ helper_svm_check_intercept_param(env, type, param);
}
-void helper_svm_check_io(uint32_t port, uint32_t param,
+void helper_svm_check_io(CPUX86State *env, uint32_t port, uint32_t param,
uint32_t next_eip_addend)
{
if (env->intercept & (1ULL << (SVM_EXIT_IOIO - SVM_EXIT_INTR))) {
@@ -541,13 +536,13 @@
/* next EIP */
stq_phys(env->vm_vmcb + offsetof(struct vmcb, control.exit_info_2),
env->eip + next_eip_addend);
- helper_vmexit(SVM_EXIT_IOIO, param | (port << 16));
+ helper_vmexit(env, SVM_EXIT_IOIO, param | (port << 16));
}
}
}
/* Note: currently only 32 bits of exit_code are used */
-void helper_vmexit(uint32_t exit_code, uint64_t exit_info_1)
+void helper_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1)
{
uint32_t int_ctl;
@@ -567,13 +562,13 @@
}
/* Save the VM state in the vmcb */
- svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.es),
+ svm_save_seg(env, env->vm_vmcb + offsetof(struct vmcb, save.es),
&env->segs[R_ES]);
- svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.cs),
+ svm_save_seg(env, env->vm_vmcb + offsetof(struct vmcb, save.cs),
&env->segs[R_CS]);
- svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ss),
+ svm_save_seg(env, env->vm_vmcb + offsetof(struct vmcb, save.ss),
&env->segs[R_SS]);
- svm_save_seg(env->vm_vmcb + offsetof(struct vmcb, save.ds),
+ svm_save_seg(env, env->vm_vmcb + offsetof(struct vmcb, save.ds),
&env->segs[R_DS]);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.gdtr.base),
@@ -602,7 +597,8 @@
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rflags),
cpu_compute_eflags(env));
- stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip), env->eip);
+ stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rip),
+ env->eip);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rsp), ESP);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.rax), EAX);
stq_phys(env->vm_vmcb + offsetof(struct vmcb, save.dr7), env->dr[7]);
@@ -645,14 +641,14 @@
~(CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C | DF_MASK));
CC_OP = CC_OP_EFLAGS;
- svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.es),
- env, R_ES);
- svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.cs),
- env, R_CS);
- svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ss),
- env, R_SS);
- svm_load_seg_cache(env->vm_hsave + offsetof(struct vmcb, save.ds),
- env, R_DS);
+ svm_load_seg_cache(env, env->vm_hsave + offsetof(struct vmcb, save.es),
+ R_ES);
+ svm_load_seg_cache(env, env->vm_hsave + offsetof(struct vmcb, save.cs),
+ R_CS);
+ svm_load_seg_cache(env, env->vm_hsave + offsetof(struct vmcb, save.ss),
+ R_SS);
+ svm_load_seg_cache(env, env->vm_hsave + offsetof(struct vmcb, save.ds),
+ R_DS);
EIP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip));
ESP = ldq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp));
@@ -707,10 +703,9 @@
cpu_loop_exit(env);
}
-void cpu_vmexit(CPUX86State *nenv, uint32_t exit_code, uint64_t exit_info_1)
+void cpu_vmexit(CPUX86State *env, uint32_t exit_code, uint64_t exit_info_1)
{
- env = nenv;
- helper_vmexit(exit_code, exit_info_1);
+ helper_vmexit(env, exit_code, exit_info_1);
}
#endif
