[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH v3 4/6] xen/arm: introduce CDF_staticmem
Hi Penny, On 27/04/2022 10:27, Penny Zheng wrote: 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_using_staticmem() to tell. Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx> The reviewed-by tags should be after signed-off-by tags. Cheers, Signed-off-by: Penny Zheng <penny.zheng@xxxxxxx> --- v3 changes: - change name from "is_domain_static()" to "is_domain_using_staticmem" --- 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 1472ca4972..6830a282a0 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -3190,9 +3190,12 @@ 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.hindex fe7a029ebf..110c672589 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)->cdf & CDF_directmap) +#define is_domain_using_staticmem(d) ((d)->cdf & 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/* -- Julien Grall
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