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selinux: Relocate ss_initialized to a separate 4k page

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We need to relocate ss_initialized to a separate 4k page
to enable EL2 Hypervisor to monitor changes to this variable
using ARM stage 2 MMU. We will avoid getting page faults from
un-related data as the MMU granularity is configured to 4k.

Change-Id: I74a1e735d5f804a35ce5b7ffe8b8746e5f56201b
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
This commit is contained in:
Zhen Kong 2018-01-09 14:38:43 -08:00
parent c58c561f99
commit 50ced54e5b
1 changed files with 1 additions and 2 deletions
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3
security/selinux/ss/services.c
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@ -78,8 +78,7 @@ static DEFINE_RWLOCK(policy_rwlock);
static struct sidtab sidtab;
struct policydb policydb;
int ss_initialized;
int ss_initialized __aligned(0x1000) __attribute__((section(".bss_rtic")));
/*
* The largest sequence number that has been used when
* providing an access decision to the access vector cache.