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Message-ID: <1452840929-19612-5-git-send-email-zhaoshenglong@huawei.com>
Date: Fri, 15 Jan 2016 14:55:17 +0800
From: Shannon Zhao <zhaoshenglong@...wei.com>
To: <linux-arm-kernel@...ts.infradead.org>,
<ard.biesheuvel@...aro.org>, <stefano.stabellini@...rix.com>,
<david.vrabel@...rix.com>
CC: <catalin.marinas@....com>, <will.deacon@....com>,
<mark.rutland@....com>, <julien.grall@...rix.com>,
<xen-devel@...ts.xen.org>, <devicetree@...r.kernel.org>,
<linux-efi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<shannon.zhao@...aro.org>, <peter.huangpeng@...wei.com>
Subject: [PATCH v2 04/16] 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>
---
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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