From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jag Raman Date: Fri, 09 Jun 2017 16:29:27 +0000 Subject: [PATCH v4 0/5] LDC changes for porting VCC driver into upstream kernel Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: sparclinux@vger.kernel.org This series of patches is part of an effort to add VCC (Virtual Console Concentrator) support to Linux. VCC enables the virtualization of serial console on SPARC processors. VCC provides access to the guest domain's serial console. VCC depends on some core functionalities in the linux kernel for SPARC. The functionalities include LDC (Logical Domain Channels), MDESC (Machine Descriptor) and VIO (Virtual IO protocol). In order for VCC to be enabled, it requires that these core functionalities support them. This series of patches adds LDC support to enable VCC on Linux. It is the first batch of changes to enable VCC. This version 4 of the series addresses the following changes suggested by Dave Miller Patch 1/5: Modifies ldc_print/__ldc_print to print caller name. Fixes indentation of wrapped lines. Jag Raman (5): sparc64: expand LDC interface sparc64: enhance ldc_abort to print message sparc64: ensure LDC channel is ready before communication sparc64: ldc abort during vds iso boot sparc64: print debug messages when reading from LDC channel arch/sparc/include/asm/ldc.h | 8 +++ arch/sparc/kernel/ldc.c | 141 +++++++++++++++++++++++++++++------------- 2 files changed, 106 insertions(+), 43 deletions(-)