[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH RFC 13/15] libxc: arm64 vcpu initialisation
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx> --- tools/libxc/xc_dom_arm.c | 90 ++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 88 insertions(+), 2 deletions(-) diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c index ecdaea9..a6d2259 100644 --- a/tools/libxc/xc_dom_arm.c +++ b/tools/libxc/xc_dom_arm.c @@ -105,7 +105,7 @@ static int shared_info_arm(struct xc_dom_image *dom, void *ptr) /* ------------------------------------------------------------------------ */ -static int vcpu_arm(struct xc_dom_image *dom, void *ptr) +static int vcpu_arm32(struct xc_dom_image *dom, void *ptr) { vcpu_guest_context_t *ctxt = ptr; @@ -143,6 +143,41 @@ static int vcpu_arm(struct xc_dom_image *dom, void *ptr) return 0; } +static int vcpu_arm64(struct xc_dom_image *dom, void *ptr) +{ + vcpu_guest_context_t *ctxt = ptr; + + DOMPRINTF_CALLED(dom->xch); + /* clear everything */ + memset(ctxt, 0, sizeof(*ctxt)); + + ctxt->user_regs.pc64 = dom->parms.virt_entry; + + /* Linux boot protocol. See linux.Documentation/arm/Booting. */ + ctxt->user_regs.x0 = dom->devicetree_blob ? + dom->devicetree_seg.vstart : 0xffffffff; + ctxt->user_regs.x1 = 0; + ctxt->user_regs.x2 = 0; + ctxt->user_regs.x3 = 0; + + DOMPRINTF("DTB %"PRIx64, ctxt->user_regs.x0); + + ctxt->sctlr = /* #define SCTLR_BASE */0x00c50078; + + ctxt->ttbr0 = 0; + ctxt->ttbr1 = 0; + ctxt->ttbcr = 0; /* Defined Reset Value */ + + ctxt->user_regs.cpsr = PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h; + + ctxt->flags = VGCF_online; + + DOMPRINTF("Initial state CPSR %#"PRIx32" PC %#"PRIx64, + ctxt->user_regs.cpsr, ctxt->user_regs.pc64); + + return 0; +} + /* ------------------------------------------------------------------------ */ static struct xc_dom_arch xc_dom_32 = { @@ -155,12 +190,59 @@ static struct xc_dom_arch xc_dom_32 = { .setup_pgtables = setup_pgtables_arm, .start_info = start_info_arm, .shared_info = shared_info_arm, - .vcpu = vcpu_arm, + .vcpu = vcpu_arm32, +}; + +static struct xc_dom_arch xc_dom_64 = { + .guest_type = "xen-3.0-aarch64", + .native_protocol = XEN_IO_PROTO_ABI_ARM, + .page_shift = PAGE_SHIFT_ARM, + .sizeof_pfn = 8, + .alloc_magic_pages = alloc_magic_pages, + .count_pgtables = count_pgtables_arm, + .setup_pgtables = setup_pgtables_arm, + .start_info = start_info_arm, + .shared_info = shared_info_arm, + .vcpu = vcpu_arm64, }; static void __init register_arch_hooks(void) { xc_dom_register_arch_hooks(&xc_dom_32); + xc_dom_register_arch_hooks(&xc_dom_64); +} + +static int set_mode(xc_interface *xch, domid_t domid, char *guest_type) +{ + static const struct { + char *guest; + uint32_t size; + } types[] = { + { "xen-3.0-aarch64", 64 }, + { "xen-3.0-armv7l", 32 }, + }; + DECLARE_DOMCTL; + int i,rc; + + domctl.domain = domid; + domctl.cmd = XEN_DOMCTL_set_address_size; + for ( i = 0; i < sizeof(types)/sizeof(types[0]); i++ ) + if ( !strcmp(types[i].guest, guest_type) ) + domctl.u.address_size.size = types[i].size; + if ( domctl.u.address_size.size == 0 ) + { + xc_dom_printf(xch, "%s: warning: unknown guest type %s", + __FUNCTION__, guest_type); + return -EINVAL; + } + + xc_dom_printf(xch, "%s: guest %s, address size %" PRId32 "", __FUNCTION__, + guest_type, domctl.u.address_size.size); + rc = do_domctl(xch, &domctl); + if ( rc != 0 ) + xc_dom_printf(xch, "%s: warning: failed (rc=%d)", + __FUNCTION__, rc); + return rc; } int arch_setup_meminit(struct xc_dom_image *dom) @@ -168,6 +250,10 @@ int arch_setup_meminit(struct xc_dom_image *dom) int rc; xen_pfn_t pfn, allocsz, i; + rc = set_mode(dom->xch, dom->guest_domid, dom->guest_type); + if ( rc ) + return rc; + dom->shadow_enabled = 1; dom->p2m_host = xc_dom_malloc(dom, sizeof(xen_pfn_t) * dom->total_pages); -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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