From: Sean Christopherson <seanjc@google.com>
To: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>, Peter H Anvin <hpa@zytor.com>,
Dave Hansen <dave.hansen@intel.com>,
Tony Luck <tony.luck@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Andi Kleen <ak@linux.intel.com>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>,
Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 04/10] x86/tdx: Handle early IO operations
Date: Wed, 9 Jun 2021 22:10:49 +0000 [thread overview]
Message-ID: <YME8aZVqI8x/a/Ld@google.com> (raw)
In-Reply-To: <20210609214555.1955404-5-sathyanarayanan.kuppuswamy@linux.intel.com>
On Wed, Jun 09, 2021, Kuppuswamy Sathyanarayanan wrote:
> +/*
> + * Handle early IO, mainly for early printks serial output.
> + * This avoids anything that doesn't work early on, like tracing
> + * or printks, by calling the low level functions directly. Any
> + * problems are handled by falling back to a standard early exception.
> + *
> + * Assumes the IO instruction was using ax, which is enforced
> + * by the standard io.h macros.
> + */
> +static __init bool tdx_early_io(struct pt_regs *regs, u32 exit_qual)
If y'all insist on shoving "tdg" down people's throats, at least get it right.
next prev parent reply other threads:[~2021-06-09 22:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-09 21:45 [PATCH v1 00/10] Add TDX Guest Support (#VE handler support) Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 01/10] x86: Introduce generic protected guest abstraction Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 02/10] x86/io: Allow to override inX() and outX() implementation Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 03/10] x86/tdx: Handle port I/O in decompression code Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 04/10] x86/tdx: Handle early IO operations Kuppuswamy Sathyanarayanan
2021-06-09 22:10 ` Sean Christopherson [this message]
2021-06-09 22:47 ` Kuppuswamy, Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 05/10] x86/tdx: Handle port I/O Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 06/10] x86/insn-eval: Introduce insn_get_modrm_reg_ptr() Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 07/10] x86/insn-eval: Introduce insn_decode_mmio() Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 08/10] x86/sev-es: Use insn_decode_mmio() for MMIO implementation Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 09/10] x86/tdx: Handle in-kernel MMIO Kuppuswamy Sathyanarayanan
2021-06-09 21:45 ` [PATCH v1 10/10] x86/tdx: Handle MWAIT and MONITOR Kuppuswamy Sathyanarayanan
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