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dkim=pass header.d=suse.com header.s=susede1 header.b=t7MrFrm0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1751443983; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=N4f9gptLjJY0e6N/f33d13mKNX3TplFpE0BIUSgd+yE=; b=t7MrFrm0/HDLCcTybXibhpoWM5oUKjxCEPNzzq6FlaGy9g287RDAAaGKRhOfuz2J1d4Nsz HlEVo9DAmC4CYgobgxUXDP8yIIKBVI/jflTHT9ifNgMXRd+oNQ7SzFgK7epfaW6t+cBJ/u o/UOoVYCb0s09NU/ULlKtIvzbfzAs/s= From: Juergen Gross To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org Cc: samuel.thibault@ens-lyon.org, Juergen Gross Subject: [MINI-OS PATCH 01/19] setup: add global pointer for struct hvm_start_info Date: Wed, 2 Jul 2025 10:12:36 +0200 Message-ID: <20250702081254.14383-2-jgross@suse.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250702081254.14383-1-jgross@suse.com> References: <20250702081254.14383-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Queue-Id: 43E542118B X-Rspamd-Action: no action X-Spam-Flag: NO X-Spamd-Result: default: False [-3.01 / 50.00]; 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charset="utf-8" Similar to start_info_ptr for PV provide hvm_start_info_ptr for PVH. Add a generic function to set the pointer. Signed-off-by: Juergen Gross Reviewed-by: Jason Andryuk --- arch/x86/setup.c | 20 +++++++++++++++++--- include/hypervisor.h | 3 +++ 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/arch/x86/setup.c b/arch/x86/setup.c index ed28d940..2085ee5c 100644 --- a/arch/x86/setup.c +++ b/arch/x86/setup.c @@ -69,6 +69,11 @@ static inline void sse_init(void) { start_info_t *start_info_ptr; EXPORT_SYMBOL(start_info_ptr); =20 +static void set_info_ptr(start_info_t *ptr) +{ + start_info_ptr =3D ptr; +} + #define hpc_init() =20 shared_info_t *map_shared_info(void) @@ -123,6 +128,17 @@ static void print_start_of_day(void *p) printk(" stack: %p-%p\n", stack, stack + sizeof(stack)); } #else + +/* + * This pointer holds a reference to the hvm_start_info struct. + */ +struct hvm_start_info *hvm_start_info_ptr; + +static void set_info_ptr(struct hvm_start_info *ptr) +{ + hvm_start_info_ptr =3D ptr; +} + static void hpc_init(void) { uint32_t eax, ebx, ecx, edx, base; @@ -176,9 +192,7 @@ arch_init(void *par) { static char hello[] =3D "Bootstrapping...\n"; =20 -#ifdef CONFIG_PARAVIRT - start_info_ptr =3D par; -#endif + set_info_ptr(par); =20 hpc_init(); (void)HYPERVISOR_console_io(CONSOLEIO_write, strlen(hello), hello); diff --git a/include/hypervisor.h b/include/hypervisor.h index d199f039..93f1247f 100644 --- a/include/hypervisor.h +++ b/include/hypervisor.h @@ -33,6 +33,9 @@ extern start_info_t *start_info_ptr; =20 #define start_info (*start_info_ptr) #else +#include + +extern struct hvm_start_info *hvm_start_info_ptr; int hvm_get_parameter(int idx, uint64_t *value); int hvm_set_parameter(int idx, uint64_t value); #endif --=20 2.43.0