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[Qemu-devel] [RFC PATCH v2 15/16] target-i386: add cpuid Fn8000_001f
From: |
Brijesh Singh |
Subject: |
[Qemu-devel] [RFC PATCH v2 15/16] target-i386: add cpuid Fn8000_001f |
Date: |
Thu, 22 Sep 2016 10:54:25 -0400 |
User-agent: |
StGit/0.17.1-dirty |
Fn8000_001f cpuid provides the memory encryption (aka C-bit)
Signed-off-by: Brijesh Singh <address@hidden>
---
target-i386/cpu.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 6a1afab..43e698b 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -22,6 +22,7 @@
#include "cpu.h"
#include "exec/exec-all.h"
#include "sysemu/kvm.h"
+#include "sysemu/sev.h"
#include "sysemu/cpus.h"
#include "kvm_i386.h"
@@ -2192,6 +2193,10 @@ static void x86_cpu_load_def(X86CPU *cpu,
X86CPUDefinition *def, Error **errp)
char host_vendor[CPUID_VENDOR_SZ + 1];
FeatureWord w;
+ if (sev_enabled()) {
+ def->xlevel = MAX(0x8000001f, def->xlevel);
+ }
+
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
object_property_set_int(OBJECT(cpu), def->family, "family", errp);
object_property_set_int(OBJECT(cpu), def->model, "model", errp);
@@ -2625,6 +2630,11 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
*edx = 0;
}
break;
+ case 0x8000001F:
+ if (sev_enabled()) {
+ host_cpuid(index, 0, eax, ebx, ecx, edx);
+ }
+ break;
case 0xC0000000:
*eax = env->cpuid_xlevel2;
*ebx = 0;
- Re: [Qemu-devel] [RFC PATCH v2 06/16] sev: add Secure Encrypted Virtulization (SEV) support, (continued)
- [Qemu-devel] [RFC PATCH v2 07/16] hmp: display memory encryption support in 'info kvm', Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 08/16] core: loader: create memory encryption context before copying data, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 09/16] sev: add LAUNCH_START command, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 10/16] sev: add LAUNCH_UPDATE command, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 11/16] sev: add LAUNCH_FINISH command, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 12/16] sev: add DEBUG_DECRYPT command, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 13/16] sev: add DEBUG_ENCRYPT command, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 14/16] i386: set memory encryption ops for PC.BIOS and PC.RAM regions, Brijesh Singh, 2016/09/22
- [Qemu-devel] [RFC PATCH v2 15/16] target-i386: add cpuid Fn8000_001f,
Brijesh Singh <=
- [Qemu-devel] [RFC PATCH v2 16/16] i386: clear C-bit in SEV guest page table walk, Brijesh Singh, 2016/09/22
- Re: [Qemu-devel] [RFC PATCH v2 00/16] x86: Secure Encrypted Virtualization (AMD), no-reply, 2016/09/22
- Re: [Qemu-devel] [RFC PATCH v2 00/16] x86: Secure Encrypted Virtualization (AMD), no-reply, 2016/09/22