Author: grehan
Date: Mon Jul 6 08:36:14 2020
New Revision: 362952
URL: https://svnweb.freebsd.org/changeset/base/362952
Log:
Silence ACPI RTC error/warning in Linux guests.
Allow guests to set the RTC bit in the ACPI PM control register.
This eliminates an annoying (and harmless) Linux kernel boot message.
PR: 244721
Submitted by: Jose Luis Duran
MFC after: 1 week
Modified:
head/usr.sbin/bhyve/pm.c
Modified: head/usr.sbin/bhyve/pm.c
==============================================================================
--- head/usr.sbin/bhyve/pm.c Mon Jul 6 02:00:35 2020 (r362951)
+++ head/usr.sbin/bhyve/pm.c Mon Jul 6 08:36:14 2020 (r362952)
@@ -198,7 +198,7 @@ pm1_enable_handler(struct vmctx *ctx, int vcpu, int in
* the global lock, but ACPI-CA whines profusely if it
* can't set GBL_EN.
*/
- pm1_enable = *eax & (PM1_PWRBTN_EN | PM1_GBL_EN);
+ pm1_enable = *eax & (PM1_RTC_EN | PM1_PWRBTN_EN | PM1_GBL_EN);
sci_update(ctx);
}
pthread_mutex_unlock(&pm_lock);
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