[PATCH 01/58] KVM: VMX: Enable io bitmaps to avoid IO port 0x80 VMEXITs

2007-06-17 Thread Avi Kivity
From: He, Qing <[EMAIL PROTECTED]> This patch enables IO bitmaps control on vmx and unmask the 0x80 port to avoid VMEXITs caused by accessing port 0x80. 0x80 is used as delays (see include/asm/io.h), and handling VMEXITs on its access is unnecessary but slows things down. This patch improves

[PATCH 01/58] KVM: VMX: Enable io bitmaps to avoid IO port 0x80 VMEXITs

2007-06-17 Thread Avi Kivity
From: He, Qing [EMAIL PROTECTED] This patch enables IO bitmaps control on vmx and unmask the 0x80 port to avoid VMEXITs caused by accessing port 0x80. 0x80 is used as delays (see include/asm/io.h), and handling VMEXITs on its access is unnecessary but slows things down. This patch improves kernel