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authorMatias Zabaljauregui <zabaljauregui@gmail.com>2009-06-12 22:27:07 -0600
committerRusty Russell <rusty@rustcorp.com.au>2009-06-12 22:27:08 +0930
commitacdd0b6292b282c4511897ac2691a47befbf1c6a (patch)
tree1bfcfc32b11d35e99fec5bbf52b19d6ee038f25e /drivers/lguest/hypercalls.c
parentcefcad1773197523e11e18b669f245e6a8d32058 (diff)
downloadlwn-acdd0b6292b282c4511897ac2691a47befbf1c6a.tar.gz
lwn-acdd0b6292b282c4511897ac2691a47befbf1c6a.zip
lguest: PAE support
This version requires that host and guest have the same PAE status. NX cap is not offered to the guest, yet. Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/hypercalls.c')
-rw-r--r--drivers/lguest/hypercalls.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index 51149ca14617..c29ffa19cb74 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -77,11 +77,21 @@ static void do_hcall(struct lg_cpu *cpu, struct hcall_args *args)
guest_set_stack(cpu, args->arg1, args->arg2, args->arg3);
break;
case LHCALL_SET_PTE:
+#ifdef CONFIG_X86_PAE
+ guest_set_pte(cpu, args->arg1, args->arg2,
+ __pte(args->arg3 | (u64)args->arg4 << 32));
+#else
guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));
+#endif
break;
case LHCALL_SET_PGD:
guest_set_pgd(cpu->lg, args->arg1, args->arg2);
break;
+#ifdef CONFIG_X86_PAE
+ case LHCALL_SET_PMD:
+ guest_set_pmd(cpu->lg, args->arg1, args->arg2);
+ break;
+#endif
case LHCALL_SET_CLOCKEVENT:
guest_set_clockevent(cpu, args->arg1);
break;