[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 7/9] target-i386: check/enforce: Eliminate check_fea
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH 7/9] target-i386: check/enforce: Eliminate check_feat field |
Date: |
Fri, 4 Jan 2013 13:37:42 -0200 |
Now that all entries have check_feat=~0 on
kvm_check_features_against_host(), we can eliminate check_feat entirely
and make the code check all bits.
This patch shouldn't introduce any behavior change, as check_feat is set
to ~0 on all entries.
Signed-off-by: Eduardo Habkost <address@hidden>
---
target-i386/cpu.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 21aceed..05134a8 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -147,7 +147,6 @@ const char *get_register_name_32(unsigned int reg)
typedef struct model_features_t {
uint32_t *guest_feat;
uint32_t *host_feat;
- uint32_t check_feat;
const char **flag_names;
uint32_t cpuid;
int reg;
@@ -951,8 +950,7 @@ static int unavailable_host_feature(struct model_features_t
*f, uint32_t mask)
}
/* best effort attempt to inform user requested cpu flags aren't making
- * their way to the guest. Note: ft[].check_feat ideally should be
- * specified via a guest_def field to suppress report of extraneous flags.
+ * their way to the guest.
*
* This function may be called only if KVM is enabled.
*/
@@ -963,20 +961,20 @@ static int kvm_check_features_against_host(x86_def_t
*guest_def)
int rv, i;
struct model_features_t ft[] = {
{&guest_def->features, &host_def.features,
- ~0, feature_name, 0x00000001, R_EDX},
+ feature_name, 0x00000001, R_EDX},
{&guest_def->ext_features, &host_def.ext_features,
- ~0, ext_feature_name, 0x00000001, R_ECX},
+ ext_feature_name, 0x00000001, R_ECX},
{&guest_def->ext2_features, &host_def.ext2_features,
- ~0, ext2_feature_name, 0x80000001, R_EDX},
+ ext2_feature_name, 0x80000001, R_EDX},
{&guest_def->ext3_features, &host_def.ext3_features,
- ~0, ext3_feature_name, 0x80000001, R_ECX}};
+ ext3_feature_name, 0x80000001, R_ECX}};
assert(kvm_enabled());
kvm_cpu_fill_host(&host_def);
for (rv = 0, i = 0; i < ARRAY_SIZE(ft); ++i)
for (mask = 1; mask; mask <<= 1)
- if (ft[i].check_feat & mask && *ft[i].guest_feat & mask &&
+ if (*ft[i].guest_feat & mask &&
!(*ft[i].host_feat & mask)) {
unavailable_host_feature(&ft[i], mask);
rv = 1;
--
1.7.11.7
- [Qemu-devel] [PATCH 0/9] target-i386: make "enforce" flag work as it should, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 2/9] target-i386: kvm: Enable all supported KVM features for -cpu host, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 4/9] target-i386: check/enforce: Do not ignore "hypervisor" flag, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 5/9] target-i386: check/enforce: Check all CPUID.80000001H.EDX bits, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 8/9] target-i386: Call kvm_check_features_against_host() only if CONFIG_KVM is set, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 6/9] target-i386: check/enforce: Check SVM flag support as well, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 7/9] target-i386: check/enforce: Eliminate check_feat field,
Eduardo Habkost <=
- [Qemu-devel] [PATCH 9/9] target-i386: check/enforce: Check all feature words, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 1/9] target-i386: kvm: -cpu host: Use GET_SUPPORTED_CPUID for SVM features, Eduardo Habkost, 2013/01/04
- [Qemu-devel] [PATCH 3/9] target-i386: check/enforce: Fix CPUID leaf numbers on error messages, Eduardo Habkost, 2013/01/04
- Message not available
- Re: [Qemu-devel] [PATCH 0/9] target-i386: make "enforce" flag work as it should, Anthony Liguori, 2013/01/04