From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, Bandan Das <bsd@redhat.com>
Subject: [PATCH 08/19] KVM: emulate: move init_decode_cache to emulate.c
Date: Mon, 14 Jul 2014 13:38:32 +0200 [thread overview]
Message-ID: <1405337923-4776-9-git-send-email-pbonzini@redhat.com> (raw)
In-Reply-To: <1405337923-4776-1-git-send-email-pbonzini@redhat.com>
From: Bandan Das <bsd@redhat.com>
Core emulator functions all belong in emulator.c,
x86 should have no knowledge of emulator internals
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/include/asm/kvm_emulate.h | 1 +
arch/x86/kvm/emulate.c | 13 +++++++++++++
arch/x86/kvm/x86.c | 13 -------------
3 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 432447370044..c22bd9af4311 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -409,6 +409,7 @@ bool x86_page_table_writing_insn(struct x86_emulate_ctxt *ctxt);
#define EMULATION_OK 0
#define EMULATION_RESTART 1
#define EMULATION_INTERCEPTED 2
+void init_decode_cache(struct x86_emulate_ctxt *ctxt);
int x86_emulate_insn(struct x86_emulate_ctxt *ctxt);
int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
u16 tss_selector, int idt_index, int reason,
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 32d3da82da2e..851315d93bf7 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -4534,6 +4534,19 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *))
return X86EMUL_CONTINUE;
}
+void init_decode_cache(struct x86_emulate_ctxt *ctxt)
+{
+ memset(&ctxt->opcode_len, 0,
+ (void *)&ctxt->_regs - (void *)&ctxt->opcode_len);
+
+ ctxt->fetch.start = 0;
+ ctxt->fetch.end = 0;
+ ctxt->io_read.pos = 0;
+ ctxt->io_read.end = 0;
+ ctxt->mem_read.pos = 0;
+ ctxt->mem_read.end = 0;
+}
+
int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
{
const struct x86_emulate_ops *ops = ctxt->ops;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cd9316786dca..905edf8557e7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4888,19 +4888,6 @@ static void inject_emulated_exception(struct kvm_vcpu *vcpu)
kvm_queue_exception(vcpu, ctxt->exception.vector);
}
-static void init_decode_cache(struct x86_emulate_ctxt *ctxt)
-{
- memset(&ctxt->opcode_len, 0,
- (void *)&ctxt->_regs - (void *)&ctxt->opcode_len);
-
- ctxt->fetch.start = 0;
- ctxt->fetch.end = 0;
- ctxt->io_read.pos = 0;
- ctxt->io_read.end = 0;
- ctxt->mem_read.pos = 0;
- ctxt->mem_read.end = 0;
-}
-
static void init_emulate_ctxt(struct kvm_vcpu *vcpu)
{
struct x86_emulate_ctxt *ctxt = &vcpu->arch.emulate_ctxt;
--
1.8.3.1
next prev parent reply other threads:[~2014-07-14 11:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-14 11:38 [PATCH resend 00/19] Emulator speedups for 3.17 Paolo Bonzini
2014-07-14 11:38 ` [PATCH 01/19] KVM: vmx: speed up emulation of invalid guest state Paolo Bonzini
2014-07-14 11:38 ` [PATCH 02/19] KVM: x86: return all bits from get_interrupt_shadow Paolo Bonzini
2014-07-14 11:38 ` [PATCH 03/19] KVM: x86: avoid useless set of KVM_REQ_EVENT after emulation Paolo Bonzini
2014-07-14 11:38 ` [PATCH 04/19] KVM: emulate: move around some checks Paolo Bonzini
2014-07-14 11:38 ` [PATCH 05/19] KVM: emulate: protect checks on ctxt->d by a common "if (unlikely())" Paolo Bonzini
2014-07-14 11:38 ` [PATCH 06/19] KVM: emulate: speed up emulated moves Paolo Bonzini
2014-07-14 11:38 ` [PATCH 07/19] KVM: emulate: simplify writeback Paolo Bonzini
2014-07-14 11:38 ` Paolo Bonzini [this message]
2014-07-14 11:38 ` [PATCH 09/19] KVM: emulate: Remove ctxt->intercept and ctxt->check_perm checks Paolo Bonzini
2014-07-14 11:38 ` [PATCH 10/19] KVM: emulate: cleanup decode_modrm Paolo Bonzini
2014-07-14 11:38 ` [PATCH 11/19] KVM: emulate: clean up initializations in init_decode_cache Paolo Bonzini
2014-07-14 11:38 ` [PATCH 12/19] KVM: emulate: rework seg_override Paolo Bonzini
2014-07-14 11:38 ` [PATCH 13/19] KVM: emulate: do not initialize memopp Paolo Bonzini
2014-07-14 11:38 ` [PATCH 14/19] KVM: emulate: speed up do_insn_fetch Paolo Bonzini
2014-07-14 11:38 ` [PATCH 15/19] KVM: emulate: avoid repeated calls to do_insn_fetch_bytes Paolo Bonzini
2014-07-14 11:38 ` [PATCH 16/19] KVM: emulate: avoid per-byte copying in instruction fetches Paolo Bonzini
2014-07-14 11:38 ` [PATCH 17/19] KVM: emulate: put pointers in the fetch_cache Paolo Bonzini
2014-07-14 11:38 ` [PATCH 18/19] KVM: x86: ensure emulator fetches do not span multiple pages Paolo Bonzini
2014-07-14 11:38 ` [PATCH 19/19] KVM: x86: use kvm_read_guest_page for emulator accesses Paolo Bonzini
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