x86/paravirt: don't restore second return reg

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Impact: bugfix

In the 32-bit calling convention, %eax:%edx is used to return 64-bit
values.  Don't save and restore %edx around wrapped functions, or they
can't return a full 64-bit result.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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Jeremy Fitzhardinge 2009-01-30 23:17:23 -08:00 • committed by H. Peter Anvin

parent 4767afbf1f

commit e584f559c7

1 changed files with 2 additions and 2 deletions

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arch/x86/include/asm/paravirt.h

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