[xen staging] x86/ucode: log blob date also for AMD

[patchbot@xxxxxxx]

commit f36179726847a08418a0b4f9c319b24ecb60fe3a
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Apr 1 16:43:50 2021 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Apr 1 16:43:50 2021 +0200

    x86/ucode: log blob date also for AMD
    
    Like Intel, AMD also records the date in their blobs. The field was
    merely misnamed as "data_code" so far; this was perhaps meant to be
    "date_code". Split it into individual fields, just like we did for Intel
    some time ago, and extend the message logged after a successful update.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/arch/x86/cpu/microcode/amd.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/cpu/microcode/amd.c b/xen/arch/x86/cpu/microcode/amd.c
index 809ba4967c..fe92e594f1 100644
--- a/xen/arch/x86/cpu/microcode/amd.c
+++ b/xen/arch/x86/cpu/microcode/amd.c
@@ -33,7 +33,9 @@ struct equiv_cpu_entry {
 };
 
 struct microcode_patch {
-    uint32_t data_code;
+    uint16_t year;
+    uint8_t  day;
+    uint8_t  month;
     uint32_t patch_id;
     uint8_t  mc_patch_data_id[2];
     uint8_t  mc_patch_data_len;
@@ -251,8 +253,9 @@ static int apply_microcode(const struct microcode_patch 
*patch)
         return -EIO;
     }
 
-    printk(XENLOG_WARNING "microcode: CPU%u updated from revision %#x to 
%#x\n",
-           cpu, old_rev, rev);
+    printk(XENLOG_WARNING
+           "microcode: CPU%u updated from revision %#x to %#x, date = 
%04x-%02x-%02x\n",
+           cpu, old_rev, rev, patch->year, patch->month, patch->day);
 
     return 0;
 }
--
generated by git-patchbot for /home/xen/git/xen.git#staging