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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Apr 2022 12:23:51.5402 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 44f5ffe0-a21d-4559-9e64-08da21364c28 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM5EUR03FT024.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB2702 In order to have an easy and quick way to find out whether this domain memory is statically configured, this commit introduces a new flag CDF_staticmem and a new helper is_domain_static to tell. Signed-off-by: Penny Zheng --- v2 changes: - change name from "is_domain_on_static_allocation" to "is_domain_static()" --- xen/arch/arm/domain_build.c | 5 ++++- xen/arch/arm/include/asm/domain.h | 2 ++ xen/include/xen/domain.h | 2 ++ 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 8be01678de..4e62fd0bf1 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -3191,9 +3191,12 @@ void __init create_domUs(void) if ( !dt_device_is_compatible(node, "xen,domain") ) continue; + if ( dt_find_property(node, "xen,static-mem", NULL) ) + flags |= CDF_staticmem; + if ( dt_property_read_bool(node, "direct-map") ) { - if ( !IS_ENABLED(CONFIG_STATIC_MEMORY) || !dt_find_property(node, "xen,static-mem", NULL) ) + if ( !IS_ENABLED(CONFIG_STATIC_MEMORY) || !(flags & CDF_staticmem) ) panic("direct-map is not valid for domain %s without static allocation.\n", dt_node_name(node)); diff --git a/xen/arch/arm/include/asm/domain.h b/xen/arch/arm/include/asm/domain.h index 36ec00e62d..b097433f9f 100644 --- a/xen/arch/arm/include/asm/domain.h +++ b/xen/arch/arm/include/asm/domain.h @@ -31,6 +31,8 @@ enum domain_type { #define is_domain_direct_mapped(d) ((d)->flags & CDF_directmap) +#define is_domain_static(d) ((d)->flags & CDF_staticmem) + /* * Is the domain using the host memory layout? * diff --git a/xen/include/xen/domain.h b/xen/include/xen/domain.h index 1c3c88a14d..35dc7143a4 100644 --- a/xen/include/xen/domain.h +++ b/xen/include/xen/domain.h @@ -34,6 +34,8 @@ void arch_get_domain_info(const struct domain *d, #ifdef CONFIG_ARM /* Should domain memory be directly mapped? */ #define CDF_directmap (1U << 1) +/* Is domain memory on static allocation? */ +#define CDF_staticmem (1U << 2) #endif /* -- 2.25.1