On 2015/2/4 0:51, Laszlo Ersek wrote: > On 02/03/15 17:19, Igor Mammedov wrote: >> On Thu, 29 Jan 2015 16:37:11 +0800 >> Shannon Zhao <zhaoshengl...@huawei.com> wrote: >> >>> XDST points to other tables except FACS & DSDT. >> Is there any reason to use XSDT instead of RSDT? >> If ACPI tables are below 4Gb which probably would >> be the case then RSDT could be used just fine and >> we could share more code between x86 and ARM. >> >> Laszlo, >> Do you know if OVMF allocates memory below 4G address range? > > Yes, it does. > > https://github.com/tianocore/edk2/blob/master/OvmfPkg/AcpiPlatformDxe/QemuFwCfgAcpi.c#L162 > > RSDT should suffice. >
Ok, will rethink about this. -- Thanks, Shannon
