[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] xen/arm: enable statically shared memory on Dom0
commit 09c0a8976acf6fa21fd853c675b2cbde20f56528 Author: Penny Zheng <penny.zheng@xxxxxxx> AuthorDate: Thu Sep 8 21:55:12 2022 +0800 Commit: Stefano Stabellini <stefano.stabellini@xxxxxxx> CommitDate: Fri Sep 9 13:00:10 2022 -0700 xen/arm: enable statically shared memory on Dom0 To add statically shared memory nodes in Dom0, user shall put according static shared memory configuration under /chosen node. This commit adds shm-processing function process_shm in construct_dom0 to enable statically shared memory on Dom0. Signed-off-by: Penny Zheng <penny.zheng@xxxxxxx> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx> --- xen/arch/arm/domain_build.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 35343e0373..1e4b5d2df8 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -2709,6 +2709,11 @@ static int __init handle_node(struct domain *d, struct kernel_info *kinfo, if ( res ) return res; } + + res = make_resv_memory_node(d, kinfo->fdt, addrcells, sizecells, + &kinfo->shm_mem); + if ( res ) + return res; } res = fdt_end_node(kinfo->fdt); @@ -3937,6 +3942,9 @@ static int __init construct_dom0(struct domain *d) { struct kernel_info kinfo = {}; int rc; +#ifdef CONFIG_STATIC_SHM + const struct dt_device_node *chosen = dt_find_node_by_path("/chosen"); +#endif /* Sanity! */ BUG_ON(d->domain_id != 0); @@ -3971,6 +3979,12 @@ static int __init construct_dom0(struct domain *d) allocate_memory_11(d, &kinfo); find_gnttab_region(d, &kinfo); +#ifdef CONFIG_STATIC_SHM + rc = process_shm(d, &kinfo, chosen); + if ( rc < 0 ) + return rc; +#endif + /* Map extra GIC MMIO, irqs and other hw stuffs to dom0. */ rc = gic_map_hwdom_extra_mappings(d); if ( rc < 0 ) -- generated by git-patchbot for /home/xen/git/xen.git#staging
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