From: Joerg Roedel <joerg.roedel@amd.com>
To: Avi Kivity <avi@redhat.com>
Cc: Alexander Graf <agraf@suse.de>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 08/21] kvm/svm: consolidate nested_svm_exit_handled
Date: Fri, 7 Aug 2009 11:49:35 +0200 [thread overview]
Message-ID: <1249638588-10982-9-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1249638588-10982-1-git-send-email-joerg.roedel@amd.com>
When caching guest intercepts there is no need anymore for the
nested_svm_exit_handled_real function. So move its code into
nested_svm_exit_handled.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Alexander Graf <agraf@suse.de>
---
arch/x86/kvm/svm.c | 109 +++++++++++++++++++++++----------------------------
1 files changed, 49 insertions(+), 60 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 75fdfe7..b2c9a9e 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1459,15 +1459,58 @@ static int nested_svm_do(struct vcpu_svm *svm,
return retval;
}
-static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
- void *arg1,
- void *arg2,
- void *opaque)
+static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
+ void *arg1, void *arg2,
+ void *opaque)
+{
+ struct vmcb *nested_vmcb = (struct vmcb *)arg1;
+ u8 *msrpm = (u8 *)arg2;
+ u32 t0, t1;
+ u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
+ u32 param = svm->vmcb->control.exit_info_1 & 1;
+
+ if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
+ return 0;
+
+ switch (msr) {
+ case 0 ... 0x1fff:
+ t0 = (msr * 2) % 8;
+ t1 = msr / 8;
+ break;
+ case 0xc0000000 ... 0xc0001fff:
+ t0 = (8192 + msr - 0xc0000000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ case 0xc0010000 ... 0xc0011fff:
+ t0 = (16384 + msr - 0xc0010000) * 2;
+ t1 = (t0 / 8);
+ t0 %= 8;
+ break;
+ default:
+ return 1;
+ break;
+ }
+ if (msrpm[t1] & ((1 << param) << t0))
+ return 1;
+
+ return 0;
+}
+
+static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
{
- bool kvm_overrides = *(bool *)opaque;
u32 exit_code = svm->vmcb->control.exit_code;
- if (kvm_overrides) {
+ switch (svm->vmcb->control.exit_code) {
+ case SVM_EXIT_MSR:
+ return nested_svm_do(svm, svm->nested.vmcb,
+ svm->nested.vmcb_msrpm, NULL,
+ nested_svm_exit_handled_msr);
+ default:
+ break;
+ }
+
+ if (kvm_override) {
switch (exit_code) {
case SVM_EXIT_INTR:
case SVM_EXIT_NMI:
@@ -1529,60 +1572,6 @@ static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
return 0;
}
-static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
- void *arg1, void *arg2,
- void *opaque)
-{
- struct vmcb *nested_vmcb = (struct vmcb *)arg1;
- u8 *msrpm = (u8 *)arg2;
- u32 t0, t1;
- u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
- u32 param = svm->vmcb->control.exit_info_1 & 1;
-
- if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
- return 0;
-
- switch(msr) {
- case 0 ... 0x1fff:
- t0 = (msr * 2) % 8;
- t1 = msr / 8;
- break;
- case 0xc0000000 ... 0xc0001fff:
- t0 = (8192 + msr - 0xc0000000) * 2;
- t1 = (t0 / 8);
- t0 %= 8;
- break;
- case 0xc0010000 ... 0xc0011fff:
- t0 = (16384 + msr - 0xc0010000) * 2;
- t1 = (t0 / 8);
- t0 %= 8;
- break;
- default:
- return 1;
- break;
- }
- if (msrpm[t1] & ((1 << param) << t0))
- return 1;
-
- return 0;
-}
-
-static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
-{
- bool k = kvm_override;
-
- switch (svm->vmcb->control.exit_code) {
- case SVM_EXIT_MSR:
- return nested_svm_do(svm, svm->nested.vmcb,
- svm->nested.vmcb_msrpm, NULL,
- nested_svm_exit_handled_msr);
- default: break;
- }
-
- return nested_svm_do(svm, svm->nested.vmcb, 0, &k,
- nested_svm_exit_handled_real);
-}
-
static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *from_vmcb)
{
struct vmcb_control_area *dst = &dst_vmcb->control;
--
1.6.3.3
next prev parent reply other threads:[~2009-08-07 9:55 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-07 9:49 [PATCH 0/21] Nested SVM cleanups v2 Joerg Roedel
2009-08-07 9:49 ` [PATCH 01/21] kvm/svm: add helper functions for global interrupt flag Joerg Roedel
2009-08-07 9:49 ` [PATCH 02/21] kvm/svm: optimize nested #vmexit Joerg Roedel
2009-08-07 9:49 ` [PATCH 03/21] kvm/svm: optimize nested vmrun Joerg Roedel
2009-08-07 9:49 ` [PATCH 04/21] kvm/svm: copy only necessary parts of the control area on vmrun/vmexit Joerg Roedel
2009-08-07 9:49 ` [PATCH 05/21] kvm/svm: complete interrupts after handling nested exits Joerg Roedel
2009-08-07 9:49 ` [PATCH 06/21] kvm/svm: move nested svm state into seperate struct Joerg Roedel
2009-08-07 9:49 ` [PATCH 07/21] kvm/svm: cache nested intercepts Joerg Roedel
2009-08-07 9:49 ` Joerg Roedel [this message]
2009-08-07 9:49 ` [PATCH 09/21] kvm/svm: do nested vmexit in nested_svm_exit_handled Joerg Roedel
2009-08-07 9:49 ` [PATCH 10/21] kvm/svm: simplify nested_svm_check_exception Joerg Roedel
2009-08-07 9:49 ` [PATCH 11/21] kvm/svm: get rid of nested_svm_vmexit_real Joerg Roedel
2009-08-07 9:49 ` [PATCH 12/21] kvm/svm: clean up nested_svm_exit_handled_msr Joerg Roedel
2009-08-07 9:49 ` [PATCH 13/21] kvm/svm: clean up nestec vmload/vmsave paths Joerg Roedel
2009-08-07 9:49 ` [PATCH 14/21] kvm/svm: clean up nested vmrun path Joerg Roedel
2009-08-07 9:49 ` [PATCH 15/21] kvm/svm: remove nested_svm_do and helper functions Joerg Roedel
2009-08-07 9:49 ` [PATCH 16/21] kvm/svm: handle errors in vmrun emulation path appropriatly Joerg Roedel
2009-08-07 9:49 ` [PATCH 17/21] kvm/svm: move special nested exit handling to separate function Joerg Roedel
2009-08-07 9:49 ` [PATCH 18/21] kvm/svm: remove unnecessary is_nested check from svm_cpu_run Joerg Roedel
2009-08-07 9:49 ` [PATCH 19/21] kvm/svm: move nested_svm_intr main logic out of if-clause Joerg Roedel
2009-08-07 9:49 ` [PATCH 20/21] kvm/svm: check for nested VINTR flag in svm_interrupt_allowed Joerg Roedel
2009-08-07 9:49 ` [PATCH 21/21] kvm/svm: enable nested svm by default Joerg Roedel
2009-08-09 9:41 ` [PATCH 0/21] Nested SVM cleanups v2 Avi Kivity
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