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From: Jan Beulich <jbeulich@suse.com>
To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>
Subject: [PATCH] x86/EFI: also fill boot_tsc_stamp on the xen.efi boot path
Date: Wed, 8 Apr 2020 10:00:48 +0200	[thread overview]
Message-ID: <7ed6f7cc-c540-88fb-6073-10ef1a2da6e7@suse.com> (raw)

Commit e3a379c35eff ("x86/time: always count s_time from Xen boot")
introducing this missed adjusting this path as well.

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/efi/efi-boot.h
+++ b/xen/arch/x86/efi/efi-boot.h
@@ -8,6 +8,7 @@
 #include <asm/edd.h>
 #include <asm/microcode.h>
 #include <asm/msr.h>
+#include <asm/setup.h>
 
 static struct file __initdata ucode;
 static multiboot_info_t __initdata mbi = {
@@ -673,6 +674,8 @@ static void __init efi_arch_cpu(void)
     uint32_t eax = cpuid_eax(0x80000000);
     uint32_t *caps = boot_cpu_data.x86_capability;
 
+    boot_tsc_stamp = rdtsc();
+
     caps[cpufeat_word(X86_FEATURE_HYPERVISOR)] = cpuid_ecx(1);
 
     if ( (eax >> 16) == 0x8000 && eax > 0x80000000 )
--- a/xen/include/asm-x86/setup.h
+++ b/xen/include/asm-x86/setup.h
@@ -10,6 +10,7 @@ extern char __2M_init_start[], __2M_init
 extern char __2M_rwdata_start[], __2M_rwdata_end[];
 
 extern unsigned long xenheap_initial_phys_start;
+extern uint64_t boot_tsc_stamp;
 
 void early_cpu_init(void);
 void early_time_init(void);


             reply	other threads:[~2020-04-08  8:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-08  8:00 Jan Beulich [this message]
2020-04-09 15:26 ` [PATCH] x86/EFI: also fill boot_tsc_stamp on the xen.efi boot path Wei Liu

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