Xen 4.17.4-pre-patchset-14.17.4-pre-patchset-14.17

Signed-off-by: Tomáš Mózes <hydrapolic@gmail.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/0066-x86-boot-Support-the-watchdog-on-newer-AMD-systems.patch b/0066-x86-boot-Support-the-watchdog-on-newer-AMD-systems.patch
new file mode 100644
index 0000000..e501861
--- /dev/null
+++ b/0066-x86-boot-Support-the-watchdog-on-newer-AMD-systems.patch
@@ -0,0 +1,48 @@
+From 2777b499f1f6d5cea68f9479f82d055542b822ad Mon Sep 17 00:00:00 2001
+From: Andrew Cooper <andrew.cooper3@citrix.com>
+Date: Tue, 2 Apr 2024 16:20:30 +0200
+Subject: [PATCH 66/67] x86/boot: Support the watchdog on newer AMD systems
+
+The MSRs used by setup_k7_watchdog() are architectural in 64bit.  The Unit
+Select (0x76, cycles not in halt state) isn't, but it hasn't changed in 25
+years, making this a trend likely to continue.
+
+Drop the family check.  If the Unit Select does happen to change meaning in
+the future, check_nmi_watchdog() will still notice the watchdog not operating
+as expected.
+
+Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
+Reviewed-by: Jan Beulich <jbeulich@suse.com>
+master commit: 131892e0dcc1265b621c2b7d844cb9e7c3a4404f
+master date: 2024-03-19 18:29:37 +0000
+---
+ xen/arch/x86/nmi.c | 11 ++++-------
+ 1 file changed, 4 insertions(+), 7 deletions(-)
+
+diff --git a/xen/arch/x86/nmi.c b/xen/arch/x86/nmi.c
+index dd31034ac8..c7c51614a6 100644
+--- a/xen/arch/x86/nmi.c
++++ b/xen/arch/x86/nmi.c
+@@ -386,15 +386,12 @@ void setup_apic_nmi_watchdog(void)
+     if ( nmi_watchdog == NMI_NONE )
+         return;
+ 
+-    switch (boot_cpu_data.x86_vendor) {
++    switch ( boot_cpu_data.x86_vendor )
++    {
+     case X86_VENDOR_AMD:
+-        switch (boot_cpu_data.x86) {
+-        case 6:
+-        case 0xf ... 0x19:
+-            setup_k7_watchdog();
+-            break;
+-        }
++        setup_k7_watchdog();
+         break;
++
+     case X86_VENDOR_INTEL:
+         switch (boot_cpu_data.x86) {
+         case 6:
+-- 
+2.44.0
+