From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1gPOF8-0004xS-5y for mharc-grub-devel@gnu.org; Wed, 21 Nov 2018 03:52:18 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55582) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gPOF3-0004v6-Oo for grub-devel@gnu.org; Wed, 21 Nov 2018 03:52:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gPOEy-0003vN-7v for grub-devel@gnu.org; Wed, 21 Nov 2018 03:52:13 -0500 Received: from mx2.suse.de ([195.135.220.15]:52310 helo=mx1.suse.de) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gPOEx-0003th-VS for grub-devel@gnu.org; Wed, 21 Nov 2018 03:52:08 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 7AFB1AC9F; Wed, 21 Nov 2018 08:52:05 +0000 (UTC) Subject: Re: [Xen-devel] [PATCH v4 11/19] xen: get memory map from hypervisor for PVH To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Cc: grub-devel@gnu.org, hans@knorrie.org, phcoder@gmail.com, daniel.kiper@oracle.com, xen-devel@lists.xen.org References: <20181102123738.16395-1-jgross@suse.com> <20181102123738.16395-12-jgross@suse.com> <20181115093620.q45jwqciodx4s4v2@mac> From: Juergen Gross Openpgp: preference=signencrypt Autocrypt: addr=jgross@suse.com; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <20181115093620.q45jwqciodx4s4v2@mac> Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] X-Received-From: 195.135.220.15 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Nov 2018 08:52:14 -0000 On 15/11/2018 10:36, Roger Pau Monn=C3=A9 wrote: > On Fri, Nov 02, 2018 at 01:37:30PM +0100, Juergen Gross wrote: >> Retrieve the memory map from the hypervisor and normalize it to contai= n >> no overlapping entries and to be sorted by address. >> >> Signed-off-by: Juergen Gross >> --- >> V3: use grub_e820_mmap_entry instead of own struct (Daniel Kiper) >> --- >> grub-core/kern/i386/xen/pvh.c | 96 ++++++++++++++++++++++++++++++++++= ++++++++- >> 1 file changed, 95 insertions(+), 1 deletion(-) >> >> diff --git a/grub-core/kern/i386/xen/pvh.c b/grub-core/kern/i386/xen/p= vh.c >> index 7e90a4538..58e6fefd5 100644 >> --- a/grub-core/kern/i386/xen/pvh.c >> +++ b/grub-core/kern/i386/xen/pvh.c >> @@ -23,9 +23,14 @@ >> #include >> #include >> #include >> +#include >> #include >> +#include >> +#include >> =20 >> -#define XEN_CONSOLE_PORT 0xe9 >> +#define XEN_CONSOLE_PORT 0xe9 >> + >> +#define XEN_MEMORY_MAP_SIZE 128 >> =20 >> grub_uint64_t grub_rsdp_addr; >> =20 >> @@ -33,6 +38,8 @@ static char hypercall_page[GRUB_XEN_PAGE_SIZE] >> __attribute__ ((aligned (GRUB_XEN_PAGE_SIZE))); >> =20 >> static grub_uint32_t xen_cpuid_base; >> +static struct grub_e820_mmap_entry map[XEN_MEMORY_MAP_SIZE]; >> +static unsigned int nr_map_entries; >> =20 >> static void >> grub_xen_panic (const char *msg) >> @@ -92,11 +99,98 @@ grub_xen_hypercall (grub_uint32_t callno, grub_uin= t32_t a0, >> return __res; >> } >> =20 >> +static void >> +grub_xen_sort_mmap (void) >=20 > There's nothing Xen-specific about this function, shouldn't it reside > in some x86 related file? As long as there is no other potential user of it I don't think so. Why should we bloat up grub for other machine types without a need? Juergen