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f7c90c2aa4
linux/arch
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Juergen Gross f7c90c2aa4 x86/xen: don't write ptes directly in 32-bit PV guests 
In some cases 32-bit PAE PV guests still write PTEs directly instead of
using hypercalls. This is especially bad when clearing a PTE as this is
done via 32-bit writes which will produce intermediate L1TF attackable
PTEs.

Change the code to use hypercalls instead.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2018-08-27 09:31:26 -04:00
..
alpha mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
arc mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
arm Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
arm64 Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
c6x kconfig: include kernel/Kconfig.preempt from init/Kconfig 2018-08-02 08:06:54 +09:00
h8300 Consolidation of Kconfig files by Christoph Hellwig. 2018-08-15 13:05:12 -07:00
hexagon mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
ia64 mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
m68k Merge branch 'akpm' (patches from Andrew) 2018-08-17 16:49:31 -07:00
microblaze mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
mips mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
nds32 mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
nios2 mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
openrisc mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
parisc mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
powerpc Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
riscv RISC-V Updates for the 4.19 Merge Window 2018-08-19 09:56:38 -07:00
s390 Minor code cleanups for PPC. 2018-08-19 10:38:36 -07:00
sh mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
sparc mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
um mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
unicore32 mm: convert return type of handle_mm_fault() caller to vm_fault_t 2018-08-17 16:20:28 -07:00
x86 x86/xen: don't write ptes directly in 32-bit PV guests 2018-08-27 09:31:26 -04:00
xtensa kernel/dma: remove unsupported gfp_mask parameter from dma_alloc_from_contiguous() 2018-08-17 16:20:32 -07:00
.gitignore
Kconfig Consolidation of Kconfig files by Christoph Hellwig. 2018-08-15 13:05:12 -07:00