25 lines
913 B
Diff
25 lines
913 B
Diff
# Commit 77e25f0e30ddd11e043e6fce84bf108ce7de5b6f
|
|
# Date 2024-04-23 14:13:48 +0200
|
|
# Author Jan Beulich <jbeulich@suse.com>
|
|
# Committer Jan Beulich <jbeulich@suse.com>
|
|
x86/MTRR: correct inadvertently inverted WC check
|
|
|
|
The ! clearly got lost by mistake.
|
|
|
|
Fixes: e9e0eb30d4d6 ("x86/MTRR: avoid several indirect calls")
|
|
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
|
|
Signed-off-by: Jan Beulich <jbeulich@suse.com>
|
|
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
|
|
|
|
--- a/xen/arch/x86/cpu/mtrr/main.c
|
|
+++ b/xen/arch/x86/cpu/mtrr/main.c
|
|
@@ -316,7 +316,7 @@ int mtrr_add_page(unsigned long base, un
|
|
}
|
|
|
|
/* If the type is WC, check that this processor supports it */
|
|
- if ((type == X86_MT_WC) && mtrr_have_wrcomb()) {
|
|
+ if ((type == X86_MT_WC) && !mtrr_have_wrcomb()) {
|
|
printk(KERN_WARNING
|
|
"mtrr: your processor doesn't support write-combining\n");
|
|
return -EOPNOTSUPP;
|