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target-i386: Fix signedness of MSR_IA32_APICBASE_BASE

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Existing definition triggers the following when using clang
-fsanitize=undefined:

hw/intc/apic_common.c:314:55: runtime error: left shift of 1048575 by 12
places cannot be represented in type 'int'

Fix it so we won't try to shift a 1 to the sign bit of a signed integer.

Backports commit 458cf469f4a1cb520b07092f5537c5a6d2389d23 from qemu
This commit is contained in:
Eduardo Habkost 2018-02-13 08:17:07 -05:00 committed by Lioncash
parent ed58b3afac
commit 79df79434d
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1 changed files with 1 additions and 1 deletions
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qemu/target-i386/cpu.h
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@ -304,7 +304,7 @@
#define MSR_IA32_APICBASE 0x1b
#define MSR_IA32_APICBASE_BSP (1<<8)
#define MSR_IA32_APICBASE_ENABLE (1<<11)
#define MSR_IA32_APICBASE_BASE (0xfffff<<12)
#define MSR_IA32_APICBASE_BASE (0xfffffU<<12)
#define MSR_IA32_FEATURE_CONTROL 0x0000003a
#define MSR_TSC_ADJUST 0x0000003b
#define MSR_IA32_TSCDEADLINE 0x6e0