xen/0009-hvmloader-Check-modules-whereabouts-in-perform_tests.patch

45 lines
1.6 KiB
Diff

From c3f4c5bcf0d8d93b5116f3e368c4739abe2dc06d Mon Sep 17 00:00:00 2001
From: Anthony PERARD <anthony.perard@citrix.com>
Date: Mon, 14 Mar 2016 17:55:44 +0000
Subject: [PATCH 09/15] hvmloader: Check modules whereabouts in perform_tests
As perform_tests() is going to clear memory past 4MB, we check that the
memory can be use or we skip the tests.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---
tools/firmware/hvmloader/tests.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
Index: xen-4.7.0-testing/tools/firmware/hvmloader/tests.c
===================================================================
--- xen-4.7.0-testing.orig/tools/firmware/hvmloader/tests.c
+++ xen-4.7.0-testing/tools/firmware/hvmloader/tests.c
@@ -210,6 +210,26 @@ void perform_tests(void)
return;
}
+ /* Check that tests does not use memory where modules are stored */
+ if ( ((uint32_t)hvm_start_info + sizeof(struct hvm_start_info)) > 4 << 20
+ && (uint32_t)hvm_start_info < 8 << 20 )
+ {
+ printf("Skipping tests due to memory used by hvm_start_info\n");
+ return;
+ }
+ for ( unsigned i = 0; i < hvm_start_info->nr_modules; i++ )
+ {
+ const struct hvm_modlist_entry *modlist =
+ (struct hvm_modlist_entry *)((uintptr_t)hvm_start_info->modlist_paddr);
+ if ( modlist[i].paddr
+ && modlist[i].paddr + modlist[i].size > 4ul << 20
+ && modlist[i].paddr < 8ul << 20 )
+ {
+ printf("Skipping tests due to memory used by a module\n");
+ return;
+ }
+ }
+
passed = skipped = 0;
for ( i = 0; tests[i].test; i++ )
{