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authorRusty Russell <rusty@rustcorp.com.au>2007-10-22 11:03:35 +1000
committerRusty Russell <rusty@rustcorp.com.au>2007-10-23 15:49:53 +1000
commitc18acd73ffc209def08003a1927473096f66c5ad (patch)
treedd8e292ac8ca90b061b7e37ad6947231ced566e3 /arch/x86/lguest
parentee3db0f2b6053b65f3b70253f5f810d9a3d67b28 (diff)
Allow guest to specify syscall vector to use.
(Based on Ron Minnich's LGUEST_PLAN9_SYSCALL patch). This patch allows Guests to specify what system call vector they want, and we try to reserve it. We only allow one non-Linux system call vector, to try to avoid DoS on the Host. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/lguest')
-rw-r--r--arch/x86/lguest/boot.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 1040f9b2f997..3a06b51c98ad 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -87,6 +87,7 @@ struct lguest_data lguest_data = {
.noirq_start = (u32)lguest_noirq_start,
.noirq_end = (u32)lguest_noirq_end,
.blocked_interrupts = { 1 }, /* Block timer interrupts */
+ .syscall_vec = SYSCALL_VECTOR,
};
static cycle_t clock_base;