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SUSE:SLE-12-SP3:Update
xen
xsa402-1.patch
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File xsa402-1.patch of Package xen
From: Andrew Cooper <andrew.cooper3@citrix.com> Subject: x86/page: Introduce _PAGE_* constants for memory types ... rather than opencoding the PAT/PCD/PWT attributes in __PAGE_HYPERVISOR_* constants. These are going to be needed by forthcoming logic. No functional change. This is part of XSA-402. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> --- a/xen/include/asm-x86/page.h +++ b/xen/include/asm-x86/page.h @@ -315,6 +315,14 @@ void efi_update_l4_pgtable(unsigned int #define _PAGE_AVAIL_HIGH (_AC(0x7ff, U) << 12) #define _PAGE_NX (cpu_has_nx ? _PAGE_NX_BIT : 0) +/* Memory types, encoded under Xen's choice of MSR_PAT. */ +#define _PAGE_WB ( 0) +#define _PAGE_WT ( _PAGE_PWT) +#define _PAGE_UCM ( _PAGE_PCD ) +#define _PAGE_UC ( _PAGE_PCD | _PAGE_PWT) +#define _PAGE_WC (_PAGE_PAT ) +#define _PAGE_WP (_PAGE_PAT | _PAGE_PWT) + /* * Debug option: Ensure that granted mappings are not implicitly unmapped. * WARNING: This will need to be disabled to run OSes that use the spare PTE
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