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[Qemu-devel] [4668] SVM: added tsc_offset
From: |
Fabrice Bellard |
Subject: |
[Qemu-devel] [4668] SVM: added tsc_offset |
Date: |
Wed, 04 Jun 2008 17:39:33 +0000 |
Revision: 4668
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4668
Author: bellard
Date: 2008-06-04 17:39:33 +0000 (Wed, 04 Jun 2008)
Log Message:
-----------
SVM: added tsc_offset
Modified Paths:
--------------
trunk/target-i386/cpu.h
trunk/target-i386/op_helper.c
Modified: trunk/target-i386/cpu.h
===================================================================
--- trunk/target-i386/cpu.h 2008-06-04 17:37:03 UTC (rev 4667)
+++ trunk/target-i386/cpu.h 2008-06-04 17:39:33 UTC (rev 4668)
@@ -119,9 +119,9 @@
#define ID_MASK 0x00200000
/* hidden flags - used internally by qemu to represent additional cpu
- states. Only the CPL and INHIBIT_IRQ are not redundant. We avoid
- using the IOPL_MASK, TF_MASK and VM_MASK bit position to ease oring
- with eflags. */
+ states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not
+ redundant. We avoid using the IOPL_MASK, TF_MASK and VM_MASK bit
+ position to ease oring with eflags. */
/* current cpl */
#define HF_CPL_SHIFT 0
/* true if soft mmu is being used */
@@ -543,6 +543,7 @@
target_phys_addr_t vm_hsave;
target_phys_addr_t vm_vmcb;
+ uint64_t tsc_offset;
uint64_t intercept;
uint16_t intercept_cr_read;
uint16_t intercept_cr_write;
Modified: trunk/target-i386/op_helper.c
===================================================================
--- trunk/target-i386/op_helper.c 2008-06-04 17:37:03 UTC (rev 4667)
+++ trunk/target-i386/op_helper.c 2008-06-04 17:39:33 UTC (rev 4668)
@@ -3005,7 +3005,7 @@
}
helper_svm_check_intercept_param(SVM_EXIT_RDTSC, 0);
- val = cpu_get_tsc(env);
+ val = cpu_get_tsc(env) + env->tsc_offset;
EAX = (uint32_t)(val);
EDX = (uint32_t)(val >> 32);
}
@@ -4851,6 +4851,8 @@
/* enable intercepts */
env->hflags |= HF_SVMI_MASK;
+ env->tsc_offset = ldq_phys(env->vm_vmcb + offsetof(struct vmcb,
control.tsc_offset));
+
env->gdt.base = ldq_phys(env->vm_vmcb + offsetof(struct vmcb,
save.gdtr.base));
env->gdt.limit = ldl_phys(env->vm_vmcb + offsetof(struct vmcb,
save.gdtr.limit));
@@ -5226,6 +5228,7 @@
env->intercept = 0;
env->intercept_exceptions = 0;
env->interrupt_request &= ~CPU_INTERRUPT_VIRQ;
+ env->tsc_offset = 0;
env->gdt.base = ldq_phys(env->vm_hsave + offsetof(struct vmcb,
save.gdtr.base));
env->gdt.limit = ldl_phys(env->vm_hsave + offsetof(struct vmcb,
save.gdtr.limit));
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