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Date: Sat, 23 Jan 2016 11:19:31 +0800 From: Shannon Zhao <zhaoshenglong@...wei.com> To: <linux-arm-kernel@...ts.infradead.org>, <ard.biesheuvel@...aro.org>, <mark.rutland@....com>, <stefano.stabellini@...rix.com>, <david.vrabel@...rix.com> CC: <catalin.marinas@....com>, <will.deacon@....com>, <julien.grall@...rix.com>, <xen-devel@...ts.xen.org>, <devicetree@...r.kernel.org>, <linux-efi@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <ian.campbell@...rix.com>, <shannon.zhao@...aro.org>, <peter.huangpeng@...wei.com> Subject: [PATCH v3 04/17] arm/xen: Use xen_xlate_map_ballooned_pages to setup grant table From: Shannon Zhao <shannon.zhao@...aro.org> Use xen_xlate_map_ballooned_pages to setup grant table. Then it doesn't rely on DT or ACPI to pass the start address and size of grant table. Signed-off-by: Shannon Zhao <shannon.zhao@...aro.org> Acked-by: Stefano Stabellini <stefano.stabellini@...citrix.com> --- arch/arm/xen/enlighten.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index afe6175..6d90a62 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -266,18 +266,10 @@ static int __init xen_guest_init(void) { struct xen_add_to_physmap xatp; struct shared_info *shared_info_page = NULL; - struct resource res; - phys_addr_t grant_frames; if (!xen_domain()) return 0; - if (of_address_to_resource(xen_node, GRANT_TABLE_PHYSADDR, &res)) { - pr_err("Xen grant table base address not found\n"); - return -ENODEV; - } - grant_frames = res.start; - xen_events_irq = irq_of_parse_and_map(xen_node, 0); if (!xen_events_irq) { pr_err("Xen event channel interrupt not found\n"); @@ -312,7 +304,10 @@ static int __init xen_guest_init(void) if (xen_vcpu_info == NULL) return -ENOMEM; - if (gnttab_setup_auto_xlat_frames(grant_frames)) { + xen_auto_xlat_grant_frames.count = gnttab_max_grant_frames(); + if (xen_xlate_map_ballooned_pages(&xen_auto_xlat_grant_frames.pfn, + &xen_auto_xlat_grant_frames.vaddr, + xen_auto_xlat_grant_frames.count)) { free_percpu(xen_vcpu_info); return -ENOMEM; } -- 2.0.4
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