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[Qemu-devel] [PATCH 05/15] i386: kvm: extract CPUID entry lookup to cpui
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH 05/15] i386: kvm: extract CPUID entry lookup to cpuid_find_entry() function |
Date: |
Thu, 4 Oct 2012 17:48:57 -0300 |
No behavior change, just code movement.
Signed-off-by: Eduardo Habkost <address@hidden>
---
target-i386/kvm.c | 30 ++++++++++++++++++++++--------
1 file changed, 22 insertions(+), 8 deletions(-)
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index ae51573..3519028 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -145,11 +145,28 @@ static uint32_t cpuid_entry_get_reg(struct
kvm_cpuid_entry2 *entry, int reg)
return ret;
}
+/* Find matching entry for function/index on kvm_cpuid2 struct
+ */
+static struct kvm_cpuid_entry2 *cpuid_find_entry(struct kvm_cpuid2 *cpuid,
+ uint32_t function,
+ uint32_t index)
+{
+ int i;
+ for (i = 0; i < cpuid->nent; ++i) {
+ if (cpuid->entries[i].function == function &&
+ cpuid->entries[i].index == index) {
+ return &cpuid->entries[i];
+ }
+ }
+ /* not found: */
+ return NULL;
+}
+
uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
uint32_t index, int reg)
{
struct kvm_cpuid2 *cpuid;
- int i, max;
+ int max;
uint32_t ret = 0;
uint32_t cpuid_1_edx;
bool found = false;
@@ -159,13 +176,10 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s,
uint32_t function,
max *= 2;
}
- for (i = 0; i < cpuid->nent; ++i) {
- if (cpuid->entries[i].function == function &&
- cpuid->entries[i].index == index) {
- struct kvm_cpuid_entry2 *entry = &cpuid->entries[i];
- found = true;
- ret = cpuid_entry_get_reg(entry, reg);
- }
+ struct kvm_cpuid_entry2 *entry = cpuid_find_entry(cpuid, function, index);
+ if (entry) {
+ found = true;
+ ret = cpuid_entry_get_reg(entry, reg);
}
/* Fixups for the data returned by KVM, below */
--
1.7.11.4
- [Qemu-devel] [PATCH 11/15] i386: kvm: mask cpuid_kvm_features earlier, (continued)
- [Qemu-devel] [PATCH 11/15] i386: kvm: mask cpuid_kvm_features earlier, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 07/15] i386: kvm: kvm_arch_get_supported_cpuid: replace if+switch with single 'if', Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 10/15] i386: kvm: x2apic is not supported without in-kernel irqchip, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 08/15] i386: kvm: set CPUID_EXT_HYPERVISOR on kvm_arch_get_supported_cpuid(), Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 14/15] i386: kvm: reformat filter_features_for_kvm() code, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 04/15] i386: kvm: extract register switch to cpuid_entry_get_reg() function, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 02/15] i386: kvm: kvm_arch_get_supported_cpuid: clean up has_kvm_features check, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 15/15] i386: kvm: filter CPUID leaf 7 based on GET_SUPPORTED_CPUID, too, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 13/15] i386: kvm: filter CPUID feature words earlier, on cpu.c, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 12/15] i386: kvm: mask cpuid_ext4_features bits earlier, Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 05/15] i386: kvm: extract CPUID entry lookup to cpuid_find_entry() function,
Eduardo Habkost <=
- [Qemu-devel] [PATCH 09/15] i386: kvm: set CPUID_EXT_TSC_DEADLINE_TIMER on kvm_arch_get_supported_cpuid(), Eduardo Habkost, 2012/10/04
- [Qemu-devel] [PATCH 03/15] i386: kvm: kvm_arch_get_supported_cpuid: use 'entry' variable, Eduardo Habkost, 2012/10/04
- Re: [Qemu-devel] [PATCH 00/15] QEMU KVM_GET_SUPPORTED_CPUID cleanups and fixes, Eduardo Habkost, 2012/10/24
- Re: [Qemu-devel] [PATCH 00/15] QEMU KVM_GET_SUPPORTED_CPUID cleanups and fixes, Marcelo Tosatti, 2012/10/26