Title: Map all other tables into DOM0 memory.
On 17/03/2016 09:40, Shannon Zhao wrote:
From: Shannon Zhao <shannon.z...@linaro.org>
Map all other tables to Dom0 using 1:1 mappings.
s/to/into/
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
Reviewed-by: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
---
xen/arch/arm/domain_build.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index ea7d6a5..c71976c 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1357,6 +1357,30 @@ static int prepare_dtb(struct domain *d, struct
kernel_info *kinfo)
}
#ifdef CONFIG_ACPI
+static void acpi_map_other_tables(struct domain *d)
+{
+ int i;
+ unsigned long res;
+ u64 addr, size;
+
+ /* Map all other tables to Dom0 using 1:1 mappings. */
That's not really true. AFAICT, you will map all the ACPI tables,
included the ones that have been discarded.
+ for( i = 0; i < acpi_gbl_root_table_list.count; i++ )
+ {
+ addr = acpi_gbl_root_table_list.tables[i].address;
+ size = acpi_gbl_root_table_list.tables[i].length;
+ res = map_regions_rw(d,
+ paddr_to_pfn(addr & PAGE_MASK),
+ DIV_ROUND_UP(size, PAGE_SIZE),
+ paddr_to_pfn(addr & PAGE_MASK));
+ if ( res )
+ {
+ panic(XENLOG_ERR "Unable to map 0x%"PRIx64
+ " - 0x%"PRIx64" in domain \n",
+ addr & PAGE_MASK, PAGE_ALIGN(addr + size) - 1);
"Unable to map ACPI region ..." to differentiate with the error message
in map_range_to_domain.
+ }
+ }
+}
+
static int acpi_create_rsdp(struct domain *d, struct membank tbl_add[])
{
@@ -1661,6 +1685,8 @@ static int prepare_acpi(struct domain *d, struct
kernel_info *kinfo)
if ( rc != 0 )
return rc;
+ acpi_map_other_tables(d);
+
return 0;
}
#else
Regards,
--
Julien Grall
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