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authorJan Kiszka <jan.kiszka@siemens.com>2017-11-27 09:11:44 +0100
committerThomas Gleixner <tglx@linutronix.de>2018-01-14 21:11:53 +0100
commite348caef8b4a161cc27bec8f7500b7e100370ef1 (patch)
tree7984f414a27c8c1a5206476ba08bbb6197134108 /arch/x86/kernel/smpboot.c
parent32c9c801a853f181448ed4e8730168c556f9e05a (diff)
downloadlinux-e348caef8b4a161cc27bec8f7500b7e100370ef1.tar.bz2
x86/platform: Control warm reset setup via legacy feature flag
Allow to turn off the setup of BIOS-managed warm reset via a new flag in x86_legacy_features. Besides the UV1, the upcoming jailhose guest support needs this switched off. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: jailhouse-dev@googlegroups.com Link: https://lkml.kernel.org/r/44376558129d70a2c1527959811371ef4b82e829.1511770314.git.jan.kiszka@siemens.com
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r--arch/x86/kernel/smpboot.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index ed556d50d7ed..9adcae1b135c 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -934,7 +934,7 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle,
* the targeted processor.
*/
- if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
+ if (x86_platform.legacy.warm_reset) {
pr_debug("Setting warm reset code and vector.\n");
@@ -1006,7 +1006,7 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle,
/* mark "stuck" area as not stuck */
*trampoline_status = 0;
- if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
+ if (x86_platform.legacy.warm_reset) {
/*
* Cleanup possible dangling ends...
*/