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drivers: hv: Turn off write permission on the hypercall page

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am: 4cdfa660c8

Change-Id: I417fd5e5734565e9d36bd0fc3dc48bf0d313c255
This commit is contained in:
K. Y. Srinivasan
2017-03-15 02:14:10 +00:00
committed by android-build-merger
parent c29b2d6c1c 4cdfa660c8
commit 3d39608598
1 changed files with 1 additions and 1 deletions
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2
drivers/hv/hv.c
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@@ -219,7 +219,7 @@ int hv_init(void)
/* See if the hypercall page is already set */
rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
if (!virtaddr)
goto cleanup;