[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH CPU v1] cpuid: initialize cpuinfo with boot_cpu_data
- To: Norbert Manthey <nmanthey@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 11 Feb 2022 11:34:57 +0100
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=XBxIgWuFIZ4NRX8iR9jLvUoZxw/GDZu4YlYw4MoH5N4=; b=exSN2sNyRamPX18f+xZ1VmxCdV6Vn2Az8QcR2sIVsLpjCyO2rzufrfCpg9m3jxSDg6fECPmLQ2guB30AgXqLknwLMHDg6b9/qsR3oYMjwaH3IqGGTjDqdX2w3e8fnBFC7fkVhkoDBWQeC7jf63wsD/fwSjU6HC+DbHjdMKRqKAmJoHX0IcgeqsQEh3RJAd5NljXSFicNs0LqIfZmb5hctzVW9NuRN0av0fv6iuRqu0FSw/ZcuP12VUV6zuiRK/g1OPWjbgBNq5sEby4lZVFQ3QXNu+HFK0/+yy/qIVsCuA2t348Gt5OYRL35R4QrSMre5F1CVoeUFQA1B/rWW0ieGw==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=NiiK29wtUtO/CxX+MeHBYQJjvIUXNtHoDhL+ch7LqkipoNTKX5+Q+mC3kOTtBvF12D1URck67BArWy4h/GHWdnKopTAHZXH8ADS6XP3qFrb9rhtID1YB4f30uxZDBC4wXfJ+rLkRRqmC4e1CPQGxLxMA63Y/LOGCxhgidwo4+X1k/IMM60xWmes/gUmcSHhTrDdJLCYVfwEggmm1PRN0FnZVNENZkH9+OwERyWEuOcqwKLZILYev/3A56Vmgi3Jb1NPej6LGDR/7l2oqJrmD0fpGlQ1FBr/VT3FHA8sco1Et/XEkhxJrB6eDpGiDii5KSVsvjgpFr9L0Y5+YBYojmQ==
- Authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=suse.com;
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Fri, 11 Feb 2022 10:35:06 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 11.02.2022 08:23, Norbert Manthey wrote:
> --- a/xen/arch/x86/cpuid.c
> +++ b/xen/arch/x86/cpuid.c
> @@ -609,7 +609,7 @@ void __init init_guest_cpuid(void)
> bool recheck_cpu_features(unsigned int cpu)
> {
> bool okay = true;
> - struct cpuinfo_x86 c;
> + struct cpuinfo_x86 c = boot_cpu_data;
> const struct cpuinfo_x86 *bsp = &boot_cpu_data;
> unsigned int i;
While I agree with the need to initialize the local variable, I
don't think it should be pre-seeded with previous indentification
results: This could end up hiding bugs. Instead I'd see it simply
be zero-filled.
Jan
|
