Commit 7271cb98 authored by Hou Wenlong's avatar Hou Wenlong Committed by Juergen Gross
Browse files

x86/PVH: Use boot params to pass RSDP address in start_info page 



After commit e6e094e0 ("x86/acpi, x86/boot: Take RSDP address from
boot params if available"), the RSDP address can be passed in boot
params. Therefore, store the RSDP address in start_info page into boot
params in the PVH entry instead of registering a different callback.
This removes an absolute reference during the PVH entry and is more
standardized.

Signed-off-by: default avatarHou Wenlong <houwenlong.hwl@antgroup.com>
Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Message-ID: <76675c4d49d3a8f72252076812ef8f22276230c2.1772282441.git.houwenlong.hwl@antgroup.com>
parent b8c460a0

arch/x86/platform/pvh/enlighten.c

+1 −6
Original line number Diff line number Diff line
@@ -25,11 +25,6 @@ struct hvm_start_info __initdata pvh_start_info; 


const unsigned int __initconst pvh_start_info_sz = sizeof(pvh_start_info);



static u64 __init pvh_get_root_pointer(void)

{

	return pvh_start_info.rsdp_paddr;

}



/*

 * Xen guests are able to obtain the memory map from the hypervisor via the

 * HYPERVISOR_memory_op hypercall.
@@ -95,7 +90,7 @@ static void __init init_pvh_bootparams(bool xen_guest) 
	pvh_bootparams.hdr.version = (2 << 8) | 12;

	pvh_bootparams.hdr.type_of_loader = ((xen_guest ? 0x9 : 0xb) << 4) | 0;



	x86_init.acpi.get_root_pointer = pvh_get_root_pointer;

	pvh_bootparams.acpi_rsdp_addr = pvh_start_info.rsdp_paddr;

}



/*