From: Kevin O'Connor <kevin@koconnor.net>
Date: Fri, 7 Aug 2015 20:13:18 +0000 (-0400)
Subject: Call cpu_relax() if yielding prior to interrupts being enabled
X-Git-Tag: rel-1.9.0~67
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=2a91b34e4494696c7168ce447fbfc9185bad6379;p=seabios.git

Call cpu_relax() if yielding prior to interrupts being enabled

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---

diff --git a/src/stacks.c b/src/stacks.c
index 107c89e..0c5f79a 100644
--- a/src/stacks.c
+++ b/src/stacks.c
@@ -661,9 +661,11 @@ fail:
 void VISIBLE16
 check_irqs(void)
 {
-    if (!MODESEGMENT && !CanInterrupt)
+    if (!MODESEGMENT && !CanInterrupt) {
         // Can't enable interrupts (PIC and/or IVT not yet setup)
+        cpu_relax();
         return;
+    }
     if (need_hop_back()) {
         extern void _cfunc16_check_irqs(void);
         stack_hop_back(0, 0, _cfunc16_check_irqs);