From: Wei Wang2 <wei.wang2@amd.com>
To: xen-devel@lists.xensource.com
Subject: [PATCH] svm: Re-enable 2MB super paging
Date: Tue, 19 Oct 2010 17:38:01 +0200 [thread overview]
Message-ID: <201010191738.02188.wei.wang2@amd.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 469 bytes --]
Bitwise OR operator has higher precedence than conditional operator. This
patch fixes the incorrect associativity and re-enables 2MB paging for AMD
family 10h system.
Thanks,
Wei
Signed-off-by: Wei Wang <wei.wang2@amd.com>
Acked-by: Wei Huang <wei.huang2@amd.com>
Legal Information:
Advanced Micro Devices GmbH
Sitz: Dornach, Gemeinde Aschheim,
Landkreis München Registergericht München,
HRB Nr. 43632
Geschäftsführer:
Alberto Bozzo, Andrew Bowd
[-- Attachment #2: fix_2mb.patch --]
[-- Type: text/x-diff, Size: 645 bytes --]
diff -r 3a5755249361 xen/arch/x86/hvm/svm/svm.c
--- a/xen/arch/x86/hvm/svm/svm.c Thu Oct 14 12:46:29 2010 +0100
+++ b/xen/arch/x86/hvm/svm/svm.c Tue Oct 19 14:40:13 2010 +0200
@@ -904,8 +904,8 @@ struct hvm_function_table * __init start
svm_function_table.hap_supported = cpu_has_svm_npt;
svm_function_table.hap_capabilities = HVM_HAP_SUPERPAGE_2MB |
- ((CONFIG_PAGING_LEVELS == 4) && (cpuid_edx(0x80000001) & 0x04000000)) ?
- HVM_HAP_SUPERPAGE_1GB : 0;
+ (((CONFIG_PAGING_LEVELS == 4) && (cpuid_edx(0x80000001) & 0x04000000)) ?
+ HVM_HAP_SUPERPAGE_1GB : 0);
return &svm_function_table;
}
[-- Attachment #3: Type: text/plain, Size: 138 bytes --]
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