[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v4 03/44] x86/boot: move cmdline to boot info
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 26 Sep 2024 11:41:09 -0400
- Arc-authentication-results: i=1; mx.zohomail.com; dkim=pass header.i=apertussolutions.com; spf=pass smtp.mailfrom=dpsmith@xxxxxxxxxxxxxxxxxxxx; dmarc=pass header.from=<dpsmith@xxxxxxxxxxxxxxxxxxxx>
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1727365273; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=OgimkvmoZ8xF8OanrFHw1w6qxGqQR/kCFawhSltRIxY=; b=AWCbZgEyLgRv0nUCZHrtlCNNpM33+YO1Sw6SbKKnXLyN90Tbl/NOV/Bxm8Eirk2u21kaIAYPn8gBXgkgR4pgFuFL7IHyUNK9aCcr0s/FwgXgs4QyLev64yzJeFd/1bIWJkLK88ujiDFjg5y1uO/AKhwEo+k4DBT1BFI/8bwDBxE=
- Arc-seal: i=1; a=rsa-sha256; t=1727365273; cv=none; d=zohomail.com; s=zohoarc; b=Kl4kBqUXRZjJoWptuTw2g0LncRlvxi1h72HDiCl0Uh/Xu/Z2G//pLGX8zNHJRaT+0DBxv1iw1HQ6Ot/5Kn5GclEpyYybhUAeShRFDkGRKHAk3tBYp/V4tM55VFYz5r8rt28XQn9KIhe8DN3LeMF+ZmlivN3EUElaTzLpSsPj3Uk=
- Autocrypt: addr=dpsmith@xxxxxxxxxxxxxxxxxxxx; keydata= xsJuBFYrueARCACPWL3r2bCSI6TrkIE/aRzj4ksFYPzLkJbWLZGBRlv7HQLvs6i/K4y/b4fs JDq5eL4e9BdfdnZm/b+K+Gweyc0Px2poDWwKVTFFRgxKWq9R7McwNnvuZ4nyXJBVn7PTEn/Z G7D08iZg94ZsnUdeXfgYdJrqmdiWA6iX9u84ARHUtb0K4r5WpLUMcQ8PVmnv1vVrs/3Wy/Rb foxebZNWxgUiSx+d02e3Ad0aEIur1SYXXv71mqKwyi/40CBSHq2jk9eF6zmEhaoFi5+MMMgX X0i+fcBkvmT0N88W4yCtHhHQds+RDbTPLGm8NBVJb7R5zbJmuQX7ADBVuNYIU8hx3dF3AQCm 601w0oZJ0jGOV1vXQgHqZYJGHg5wuImhzhZJCRESIwf+PJxik7TJOgBicko1hUVOxJBZxoe0 x+/SO6tn+s8wKlR1Yxy8gYN9ZRqV2I83JsWZbBXMG1kLzV0SAfk/wq0PAppA1VzrQ3JqXg7T MZ3tFgxvxkYqUP11tO2vrgys+InkZAfjBVMjqXWHokyQPpihUaW0a8mr40w9Qui6DoJj7+Gg DtDWDZ7Zcn2hoyrypuht88rUuh1JuGYD434Q6qwQjUDlY+4lgrUxKdMD8R7JJWt38MNlTWvy rMVscvZUNc7gxcmnFUn41NPSKqzp4DDRbmf37Iz/fL7i01y7IGFTXaYaF3nEACyIUTr/xxi+ MD1FVtEtJncZNkRn7WBcVFGKMAf+NEeaeQdGYQ6mGgk++i/vJZxkrC/a9ZXme7BhWRP485U5 sXpFoGjdpMn4VlC7TFk2qsnJi3yF0pXCKVRy1ukEls8o+4PF2JiKrtkCrWCimB6jxGPIG3lk 3SuKVS/din3RHz+7Sr1lXWFcGYDENmPd/jTwr1A1FiHrSj+u21hnJEHi8eTa9029F1KRfocp ig+k0zUEKmFPDabpanI323O5Tahsy7hwf2WOQwTDLvQ+eqQu40wbb6NocmCNFjtRhNZWGKJS b5GrGDGu/No5U6w73adighEuNcCSNBsLyUe48CE0uTO7eAL6Vd+2k28ezi6XY4Y0mgASJslb NwW54LzSSM0uRGFuaWVsIFAuIFNtaXRoIDxkcHNtaXRoQGFwZXJ0dXNzb2x1dGlvbnMuY29t PsJ6BBMRCAAiBQJWK7ngAhsjBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRBTc6WbYpR8 KrQ9AP94+xjtFfJ8gj5c7PVx06Zv9rcmFUqQspZ5wSEkvxOuQQEAg6qEsPYegI7iByLVzNEg 7B7fUG7pqWIfMqFwFghYhQzOwU0EViu54BAIAL6MXXNlrJ5tRUf+KMBtVz1LJQZRt/uxWrCb T06nZjnbp2UcceuYNbISOVHGXTzu38r55YzpkEA8eURQf+5hjtvlrOiHxvpD+Z6WcpV6rrMB kcAKWiZTQihW2HoGgVB3gwG9dCh+n0X5OzliAMiGK2a5iqnIZi3o0SeW6aME94bSkTkuj6/7 OmH9KAzK8UnlhfkoMg3tXW8L6/5CGn2VyrjbB/rcrbIR4mCQ+yCUlocuOjFCJhBd10AG1IcX OXUa/ux+/OAV9S5mkr5Fh3kQxYCTcTRt8RY7+of9RGBk10txi94dXiU2SjPbassvagvu/hEi twNHms8rpkSJIeeq0/cAAwUH/jV3tXpaYubwcL2tkk5ggL9Do+/Yo2WPzXmbp8vDiJPCvSJW rz2NrYkd/RoX+42DGqjfu8Y04F9XehN1zZAFmCDUqBMa4tEJ7kOT1FKJTqzNVcgeKNBGcT7q 27+wsqbAerM4A0X/F/ctjYcKwNtXck1Bmd/T8kiw2IgyeOC+cjyTOSwKJr2gCwZXGi5g+2V8 NhJ8n72ISPnOh5KCMoAJXmCF+SYaJ6hIIFARmnuessCIGw4ylCRIU/TiXK94soilx5aCqb1z ke943EIUts9CmFAHt8cNPYOPRd20pPu4VFNBuT4fv9Ys0iv0XGCEP+sos7/pgJ3gV3pCOric p15jV4PCYQQYEQgACQUCViu54AIbDAAKCRBTc6WbYpR8Khu7AP9NJrBUn94C/3PeNbtQlEGZ NV46Mx5HF0P27lH3sFpNrwD/dVdZ5PCnHQYBZ287ZxVfVr4Zuxjo5yJbRjT93Hl0vMY=
- Cc: jason.andryuk@xxxxxxx, christopher.w.clark@xxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Thu, 26 Sep 2024 15:41:27 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 9/3/24 19:04, Andrew Cooper wrote:
On 30/08/2024 10:46 pm, Daniel P. Smith wrote:
Transition Xen's command line to being held in struct boot_info.
No functional change intended.
Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Thank you.
diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 432b7d1701e4..a945fa10555f 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -1049,11 +1058,7 @@ void asmlinkage __init noreturn __start_xen(unsigned
long mbi_p)
multiboot_to_bootinfo(mbi);
- /* Parse the command-line options. */
- if ( mbi->flags & MBI_CMDLINE )
- cmdline = cmdline_cook(__va(mbi->cmdline),
boot_info->boot_loader_name);
-
- if ( (kextra = strstr(cmdline, " -- ")) != NULL )
+ if ( (kextra = strstr(boot_info->cmdline, " -- ")) != NULL )
{
/*
* Options after ' -- ' separator belong to dom0.
@@ -1064,7 +1069,7 @@ void asmlinkage __init noreturn __start_xen(unsigned long
mbi_p)
kextra += 3;
while ( kextra[1] == ' ' ) kextra++;
}
- cmdline_parse(cmdline);
+ cmdline_parse(boot_info->cmdline);
It would be nice to get this kextra handling out of __start_xen(), but
I'm not entirely sure how.
It shouldn't live in multiboot_fill_boot_info() if that's going to be
split for pvh, yet it really ought to live with the other editing of
bi->cmdline.
Something that is very subtle is that the *kextra = '\0' between these
two hunks ends up truncating bi->cmdline.
Perhaps best to leave it alone until inspiration strikes.
One thought is to move all the logic into a function and make it the
responsibility of fill function(s) to call it, since each entry point
has its own unique way for the xen command line to be passed in.
v/r,
dps
|